1019 Part 2 of Java 8 Code for loading h2 database, and editing rows record by record

This is in continuation of previous post NO. 1018 Click to go to 1018 at this blog. As promised, I copy and paste below, the Java 8 code for editing h2 embedded database records, saved by me as file yh2db.java. After saving, this file has been compiled as a Java Class, by using javac command. For those who use installed java 8, the javac compilation command can be invoked from command line reading something like:

javac yh2db.java
(or any other file name, of Readers' Preference, after changing the class name in the file). This javac command is to be invoked from the folder in which the ybh2db.java (or any other name) file is located.
I use linux portable java 8. Hence, I have used a slightly different path for the command line.
....path/javac yh2db.java.

After compilation without errors, the Class can be executed with java command.
java ybh2db (or any other file name of Readers' choice).

Notes about column names used in the tables, and sql statements

For convenience, I have created h2 database tables with simple column names such as c1, c2, c3, c4, c5, c6, c7, c8, c9, c10. The same simple column names c1, c2, c3, c4, c5 have been used in sql statements. Readers can freely change these columns to any other column names of their choice, in the tables they create. This Java 8 code is not useful for creating tables, at this preliminary stage.

Tables for embedded h2 database can be created by using h2 console, discussed in the previous blog post referred to above.

Now, the java 8 code for the Editor

//Editing embedded h2 database tables, with Java 8 code. import java.sql.*; import java.awt.event.*; import java.awt.*; import java.awt.event.*; import java.io.*; import java.io.IOException; import java.nio.file.Files; import java.nio.file.Path; import java.nio.file.StandardOpenOption; import java.nio.file.Paths; import java.nio.charset.StandardCharsets; import java.nio.charset.Charset; import javax.swing.text.*; import java.util.regex.Pattern; import static java.lang.System.*; import javax.swing.*; //to use JButton, JFrame, JPanel, JScrollPane, JTextArea, JOptionPane import java.util.*; //for using h2db import java.io.InputStream; import java.io.InputStreamReader; import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.Statement; //Java naming conventions have not been followed. Sorry. //For convenience, Column names used in the tables are c1, c2, c3, c4, c5. Different column names can be used. But, then code will have to be changed mutatis mutandis. //This file is to be saved as yh2db.java. If you wish to change the class name yh2db to something else, you can do that. But, pl. ensure that your .java file name also bears the same name. public class yh2db extends JFrame { public int uirecno; public static void yh2db(){ JFrame ufra = new JFrame("h2 embedded db loading and editing."); JPanel uupanel = new JPanel(); //upper panel definition. JPanel ulpanel = new JPanel(); //lower panel definition. ufra.getContentPane().add(uupanel, "North"); ufra.getContentPane().add(ulpanel,"South"); ufra.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JTextArea utarea= new JTextArea("1",1,4); //This text area is for the first primary key column 'pk' in the tables. This number is given by the Database as auto_increment. uupanel.add(utarea ); //adding the text area to the upper panel. utarea.setEditable(true); utarea.setLineWrap(true); utarea.setOpaque(true); utarea.setFont(new Font("Serif", Font.BOLD, 16) ); uupanel.setOpaque(true); /////////second textarea JTextArea utarea2= new JTextArea("column c1. ",5,14); uupanel.add(utarea2 ); utarea2.setEditable(true); utarea2.setLineWrap(true); utarea2.setOpaque(true); utarea2.setFont(new Font("Serif", Font.BOLD, 14) ); utarea2.setForeground(Color.red); /////////third textarea JTextArea utarea3= new JTextArea("column c2. ",5,14); uupanel.add(utarea3 ); utarea3.setEditable(true); utarea3.setLineWrap(true); utarea3.setOpaque(true); utarea3.setFont(new Font("Serif", Font.BOLD, 14) ); utarea3.setForeground(Color.green); /////////fourth textarea JTextArea utarea4= new JTextArea("column c3. ",5,14); uupanel.add(utarea4 ); utarea4.setEditable(true); utarea4.setLineWrap(true); utarea4.setOpaque(true); utarea4.setFont(new Font("Serif", Font.BOLD, 14) ); utarea4.setForeground(Color.magenta); /////////fifth textarea JTextArea utarea5= new JTextArea("column c4. ",5,12); uupanel.add(utarea5 ); utarea5.setEditable(true); utarea5.setLineWrap(true); utarea5.setOpaque(true); utarea5.setFont(new Font("Serif", Font.BOLD, 14) ); utarea5.setForeground(Color.blue); /////////6th textarea JTextArea utarea6= new JTextArea("column c5. ",5,12); uupanel.add(utarea6 ); utarea6.setEditable(true); utarea6.setLineWrap(true); utarea6.setOpaque(true); utarea6.setFont(new Font("Serif", Font.BOLD, 14) ); utarea6.setForeground(Color.blue); //creating and populating lower panel JLabel ulpltable = new JLabel("table name:"); ulpanel.add(ulpltable); JTextArea ulptatable= new JTextArea("tyb3",1,10); ulpanel.add(ulptatable); ulptatable.setEditable(true); ulptatable.setFont(new Font("Serif", Font.BOLD, 12) ); JTextArea ulptasearterm= new JTextArea("fevers",1,10); ulpanel.add(ulptasearterm); ulptasearterm.setEditable(true); ulptasearterm.setFont(new Font("Serif", Font.BOLD, 12) ); JLabel ulcol = new JLabel("Column to search"); ulpanel.add(ulcol); JTextArea ulptacol= new JTextArea("c1",1,5); ulpanel.add(ulptacol); ulptacol.setEditable(true); //button creation JButton ub1 = new JButton("Get "); ulpanel.add(ub1); JButton ub2 = new JButton("Update"); ulpanel.add(ub2); JButton ub3 = new JButton("Next"); ulpanel.add(ub3); JButton ub4 = new JButton("Prev"); ulpanel.add(ub4); JButton ub5 = new JButton("Search"); ulpanel.add(ub5); JButton ub6 = new JButton ("Add"); ulpanel.add(ub6); JButton ub7 = new JButton ("Delete"); ulpanel.add(ub7); ub7.setForeground(Color.red); //Display the window. ufra.pack(); ufra.setVisible(true); ///////////////////buttons and listeners/////////////////////////// //this actionlistener is for getrecord button ub1 ub1.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try{ String usrec = utarea.getText(); int uirecno; uirecno = Integer.parseInt(usrec); int uinext = uirecno + 1; //Class.forName("org.h2.Driver").newInstance(); Class.forName("org.h2.Driver"); Connection conn = DriverManager.getConnection("jdbc:h2:~/mytest", "sa", ""); // add application code here String sql = "select * from tyb3 where pk=' " + uirecno + " ' "; Statement stat = conn.createStatement(); // ResultSet rs = stat.executeQuery("SELECT * FROM tyb3 next 1"); ResultSet rs = stat.executeQuery(sql); while (rs.next()) { //System.out.println(rs.getString(1)); utarea.setText( rs.getString(1) ); utarea2.setText( rs.getString(2) ); utarea3.setText( rs.getString(3) ); utarea4.setText( rs.getString(4) ); utarea5.setText( rs.getString(5) ); utarea6.setText( rs.getString(6) ); } //endwhile rs.close(); // stat.close(); // conn.close(); } //end try catch(Exception e1){ JOptionPane.showMessageDialog(null, "Sorry, not found or some error took place"); } //end catch } //endaction performed }) ; ///////////////ub3///////////next///////////////////////////// //this actionlistener is for getrecord button ub3 ub3.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try{ String usfilen = ulptatable.getText(); String usrec = utarea.getText(); int uirecno; uirecno = Integer.parseInt(usrec); int uinext= uirecno + 1; String usnext = Integer.toString(uinext); Class.forName("org.h2.Driver").newInstance(); Connection conn = DriverManager. getConnection("jdbc:h2:~/mytest", "sa", ""); // add application code here String sql = "select * from tyb3 where pk=' " + uinext + " ' "; Statement stat = conn.createStatement(); ResultSet rs = stat.executeQuery(sql); while (rs.next()) { //System.out.println(rs.getString(1)); utarea.setText( rs.getString(1) ); utarea2.setText( rs.getString(2) ); utarea3.setText( rs.getString(3) ); utarea4.setText( rs.getString(4) ); utarea5.setText( rs.getString(5) ); utarea6.setText( rs.getString(6) ); } //endwhile } //end try catch(Exception e1){ JOptionPane.showMessageDialog(null, "Sorry, not found or some error took place"); } //end catch } //endaction performed }) ; //end addactionListenernewactionListener() /////////////////ub4////////////prev////////////////////////// //this actionlistener is for record prev button ub4 ub4.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try{ String usrec = utarea.getText(); int uirecno; uirecno = Integer.parseInt(usrec); int uiprev= uirecno - 1; String usprev = Integer.toString(uiprev); Class.forName("org.h2.Driver").newInstance(); Connection conn = DriverManager. getConnection("jdbc:h2:~/mytest", "sa", ""); // add application code here String sql = "select * from tyb3 where pk=' " + uiprev + " ' "; Statement stat = conn.createStatement(); ResultSet rs = stat.executeQuery(sql); while (rs.next()) { utarea.setText( rs.getString(1) ); utarea2.setText( rs.getString(2) ); utarea3.setText( rs.getString(3) ); utarea4.setText( rs.getString(4) ); utarea5.setText( rs.getString(5) ); } //endwhile } //end try catch(Exception e1){ JOptionPane.showMessageDialog(null, "Sorry, not found or some error took place"); } //end catch } //endaction performed }) ; //endof prev button ib4 addActionListener( new action ActionListener(){ ///////////ub5////////////////search//////////////////////////// //this actionlistener is for getrecord search button ub5 ub5.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try{ String ustable = ulptatable.getText(); String usear = ulptasearterm.getText(); System.out.print(ustable); System.out.print(usear); Class.forName("org.h2.Driver").newInstance(); Connection conn = DriverManager.getConnection("jdbc:h2:~/mytest", "sa", ""); // add application code here Statement stat = conn.createStatement(); String sql2 = "select * from " + ustable + " where lower(c1) like" + "'%" + usear + "%'" ; ResultSet rs = stat.executeQuery(sql2); while (rs.next()) { //System.out.println(rs.getString(1)); utarea.setText( rs.getString(1) ); utarea2.setText( rs.getString(2) ); utarea3.setText( rs.getString(3) ); utarea4.setText( rs.getString(4) ); utarea5.setText( rs.getString(5) ); utarea6.setText( rs.getString(5) ); } //endwhile } //end try catch(Exception e1){ System.err.println("Database exception: " + e1); JOptionPane.showMessageDialog(null, "Sorry, not found or some error took place"); } //end catch } //endaction performed }) ; //endof prev button ib4 addActionListener( new action ActionListener() //////////////ub2/////////////////update///////////////////////// ub2.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { //int uirecno = Integer.parseInt(utarea.getText() ); String usrec = utarea.getText(); int uirecno; uirecno = Integer.parseInt(usrec); System.out.print(uirecno); try{ String scolc1; String scolc2; String scolc3; String scolc4; String scolc5; scolc1 =utarea2.getText(); scolc2= utarea3.getText(); scolc3=utarea4.getText(); scolc4=utarea5.getText(); scolc5=utarea6.getText(); Class.forName("org.h2.Driver").newInstance(); Connection conn = DriverManager.getConnection("jdbc:h2:~/mytest", "sa", ""); // add application code here String sql = "update tyb3 set " + "c1 =" + "'" + scolc1 + "' ," + "c2=" + "'" + scolc2+ "', " + "c3 =" + "'" + scolc3 + "', " + "c4 =" + "'" + scolc4 + "', " + "c5 =" + "'" + scolc5 + "' " + "where pk=" + uirecno ; Statement stat = conn.createStatement(); stat.executeUpdate(sql); String sql2="select * from tyb3"; ResultSet rs = stat.executeQuery(sql2); while (rs.next()) { //System.out.println(rs.getString(1)); utarea.setText( rs.getString(1) ); utarea2.setText( rs.getString(2) ); utarea3.setText( rs.getString(3) ); utarea4.setText( rs.getString(4) ); utarea5.setText( rs.getString(5) ); utarea6.setText( rs.getString(6) ); } //endwhile JOptionPane.showMessageDialog(null, "Updated. Press next or, get or something else"); }//endtry catch (Exception e2){ System.err.println("Database exception: " + e2); } //endcatch } //actionevent e }) ; //ub2 actionlistener //////////////////////ub6/////////////add///////////////////////////////// //this actionlistener is for button ub6 add ub6.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try{ String scolc1; String scolc2; String scolc3; String scolc4; String scolc5; scolc1 =utarea2.getText(); scolc2= utarea3.getText(); scolc3=utarea4.getText(); scolc4=utarea5.getText(); scolc5=utarea6.getText(); Class.forName("org.h2.Driver").newInstance(); Connection conn = DriverManager.getConnection("jdbc:h2:~/mytest", "sa", ""); // add application code here String sql = "insert into tyb3 (c1, c2, c3, c4, c5) values (" + "'"+ scolc1 + "'" + ",'"+ scolc2+ "'," + "'"+ scolc3 + "'," + "'"+ scolc4 + "'," + "'"+ scolc5 + "'" + ")" ; Statement stat = conn.createStatement(); stat.executeUpdate(sql); String sql2="select * from tyb3"; ResultSet rs = stat.executeQuery(sql2); while (rs.next()) { //System.out.println(rs.getString(1)); utarea.setText( rs.getString(1) ); utarea2.setText( rs.getString(2) ); utarea3.setText( rs.getString(3) ); utarea4.setText( rs.getString(4) ); utarea5.setText( rs.getString(5) ); utarea6.setText( rs.getString(6) ); } //endwhile JOptionPane.showMessageDialog(null, "Added one row"); }//endtry catch (Exception e2){ JOptionPane.showMessageDialog(null, "Sorry something went wrong."); } //endcatch } //actionevent e }) ; //ub6 actionlistener ///////////////////ub7////////delete/////////////////////////// //this actionlistener is for button ub7 delete ub7.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { String usrec = utarea.getText(); int uirecno; uirecno = Integer.parseInt(usrec); System.out.print(uirecno); try{ Class.forName("org.h2.Driver").newInstance(); Connection conn = DriverManager.getConnection("jdbc:h2:~/mytest", "sa", ""); // add application code here String sql = "delete from tyb3 where pk=" + uirecno ; Statement stat = conn.createStatement(); stat.executeUpdate(sql); String sql2="select * from tyb3"; ResultSet rs = stat.executeQuery(sql2); while (rs.next()) { //System.out.println(rs.getString(1)); utarea.setText( rs.getString(1) ); utarea2.setText( rs.getString(2) ); utarea3.setText( rs.getString(3) ); utarea4.setText( rs.getString(4) ); utarea5.setText( rs.getString(5) ); utarea6.setText( rs.getString(6) ); } //endwhile String usrecno = Integer.toString(uirecno+1); ulptacol.setText("0"); JOptionPane.showMessageDialog(null, "Deleted. You can enter fresh recordno. in recordno. box and press get. Alternatively you can use search button. " ); }//endtry catch (Exception e2){ JOptionPane.showMessageDialog(null, "Sorry something went wrong."); } //endcatch } //actionevent e }) ; //ub7 actionlistener for delete }//end meth ydictirecno2 ///////////////////////////main psvm ////////////////////// public static void main(String[] args) throws Exception { yh2db(); } //end psvm } //end public class

830 New Java 8 TextRecordEditor with Vol. 1 of Collected Works of Lenin as sample.

I am not sure, how many people of this 21st Century, 2016, know about or heard about or studied about Lenin. Reasons: Bourgeoise Governments, B.Universities, B.Colleges, B.B.Schools (Bourgeoise Business Schools) hate Lenin. I am not a great lover of October Revolution of Russia, which took place in 1917. It has its own benefits, merits, pitfalls and shortcomings. This is the 100th year of the October Revolution. The U.S.S.R. (Union of Soviet Social Republics) might have vanished into the curtains of history, may be owing to the inherent deficiencies of the Communist / Marxist / Socialist philosophies. Or may be owing to the dictatorial, totalitarian, tyrannical manners in which Lenin himself / or his followers might have on their volition, or by the quirk or the force of circumstances, had drifted from the basic objective of the Proletarianism. The Collected Works of Lenin, English version are available on Net freely, to download which I have already given a link. For the benefit of those readers, who might not have glanced it, I repeat the link: Click to go to Marxists.org, for downloading Complete Works of Lenin.

yb-donkey: I am studying / trying to study the 45 Volumes of the Complete Works of Lenin. I am not sure about the tangible benefits which are likely to accrue to me, or to the world when I try to publish my findings to the world. This is somewhat a gray area.

ON THE OCCASION OF THE OCTOBER REVOLUTION FOR THE BENEFIT OF STUDENTS OF JAVA 8

In some of my previous posts I have given Java 8 code, and also download links for a Text-Record-Editor designed by me.

I have designed a revised version. Improvements: 1. Added Menu Bars and Menu Items. 2. Added Tool Bar, with small icons. Rectified some bugs also. But there are still many.

Lenin1.txt file, which is free to you, has about 550 pages. The file is very tough to study / edit, owing to archaic language of early 20th Century, and the problems involved in translating from Russian to English. It is not even suitable for casual reading. But, where there is a WILL, there will be a WAY. The subject itself will look dry to netizens, most of whom are well-to-do persons, not having any acquaintance with problems of farmers or proletariat.

A Screenshot of the Editor after making a search, pressing Search-Single Button can be seen above. At the top is a menu bar with menu-items which appears when mouse is moved at the top. On the left side are the tool bars with icons. At the bottom are 2 labels, 3 text boxes, and 12 buttons for 1) get record 2) next record 3) previous record 4) Update button, to update after making corrections, 5) Search single item 6) Add to add new records at the end of the Text file 7) Delete Button to delete a record 8) Search continue. If there are more than one results, after perusing the first result got by pressing the Search single button, if this button is pressed to view one by one, all the search results.

Apart from Lenin1.txt file which represents the Vol. 1 of his Collected Works, there is a short medicdicti.txt. Other text files can also be edited, by copying that particular textfile in the ayyotextedit folder (or the folder where all the ayyotextedit classes, icons, text files are stored.

DOWNLOAD THE ZIP FILE CONSISTING OF .JAVA, .CLASS, SUB-CLASSES, ICONS (JPG) FILES, README, LENIN1.TXT FILE, MINI MEDICDICTI.TXT FILE,

etc. Zip file size is approx. 4.5 mb.
Download link: To download from ayyox10.mx, a free-host for our sub-domain.. After downloading, the Zip file is to be unzipped. After unzipping, you will get a folder calld 'ayyotextedit'. In that folder you will find all the files. Though I am giving the java source code .java file, there will be no need for readers to compile it using it javac. It will be useful to them, if they want to alter the code, and recompile.

Java command is to be invoked from Dos Prompt/ or Command-line in linux. From the dos prompt/command line,readers have to use cd command and go to the folder where the ayyotextedit class files are located.

e.g. : cd D:\.....\ayyotextedit.
Then type java ayyotextedit and press Enter.

JAVA 8 SOURCE CODE FOR TEXT RECORDS EDITOR 2016 NOV VERSION

//I have not followed Java naming conventions. I apologise for the lapse. I shall improve upon this code as soon as I can. I shall add more explanatory comments also. import java.awt.*; //to use java.awt_event_actionListener import java.awt.event.*; import java.awt.EventQueue; import java.awt.event.ActionEvent; import java.awt.event.KeyEvent; import javax.swing.JToolBar; import java.io.*; import javax.swing.*; import javax.swing.BorderFactory; import javax.swing.border.Border; import javax.swing.border.TitledBorder; import javax.swing.border.AbstractBorder; import javax.swing.text.*; import javax.swing.ImageIcon; import javax.swing.JFrame; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.JTextPane; import java.util.*; import java.nio.file.Files; import java.nio.file.Path; import java.nio.file.Paths; import java.nio.file.StandardOpenOption; import java.nio.charset.StandardCharsets; import java.nio.charset.Charset; //class name and .java file name you save, must be same. public class ayyotextedit extends JFrame { public JFrame yfra = new JFrame(); public JToolBar ytb = new JToolBar(1); public ImageIcon yim1 = new ImageIcon ("start.jpg"); public ImageIcon yim2 = new ImageIcon ("next.jpg"); public ImageIcon yim3 = new ImageIcon ("prev.jpg"); public ImageIcon yim4 = new ImageIcon ("update.jpg"); public ImageIcon yim5 = new ImageIcon ("searchsing.jpg"); public ImageIcon yim6 = new ImageIcon ("add.jpg"); public ImageIcon yim8 = new ImageIcon ("searchcont.jpg"); public ImageIcon yim9 = new ImageIcon ("get.jpg"); public JButton ytimb1 = new JButton(yim1); public JButton ytimb2 = new JButton(yim2); public JButton ytimb3 = new JButton(yim3); public JButton ytimb4 = new JButton(yim4); public JButton ytimb5 = new JButton(yim5); public JButton ytimb6 = new JButton(yim6); public JButton ytimb8 = new JButton(yim8); public JButton ytimb9 = new JButton(yim9); //menu bars public JMenuBar ymb1 = new JMenuBar(); public JMenu ym1 = new JMenu("Edit"); public JMenu ym2 = new JMenu("Edit2"); public JMenuItem ymi1 = new JMenuItem("Start"); public JMenuItem ymi2 = new JMenuItem("Next"); public JMenuItem ymi3 = new JMenuItem("Prev"); public JMenuItem ymi4 = new JMenuItem("Update"); public JMenuItem ymi5 = new JMenuItem("Search Single- typed in textbox"); public JMenuItem ymi6 = new JMenuItem("Add"); public JMenuItem ymi7 = new JMenuItem("Delete"); public JMenuItem ymi8 = new JMenuItem("Search continue"); public JMenuItem ymi9 = new JMenuItem("GetNo."); public JMenuItem ymi10 = new JMenuItem("Clean the slate"); public JMenuItem ymi11 = new JMenuItem("Go first"); public JMenuItem ymi12 = new JMenuItem("Go last"); //upper and lower panels public JPanel ypanup = new JPanel(); public JPanel ypandow = new JPanel(); //layouts //public GridLayout ygridl = new GridLayout(5,3); see method //TextPane //TextAreas and scrolls public JTextArea ytaresu = new JTextArea("Clean Slate",20,55); public JTextArea ytafilen = new JTextArea(); public JTextArea ytarecno = new JTextArea(); public JTextArea ytasear = new JTextArea(); //buttons public JButton yb1 = new JButton("Start"); public JButton yb2 = new JButton("Next"); public JButton yb3 = new JButton("Prev"); public JButton yb4 = new JButton("Update"); public JButton yb5 = new JButton("Search Single"); public JButton yb6 = new JButton("Add"); public JButton yb7 = new JButton("Del"); public JButton yb8 = new JButton("Search continue"); public JButton yb9 = new JButton("GetNo."); public JButton yb10 = new JButton("Clean the Slate"); public JButton yb11 = new JButton("Go First"); public JButton yb12 = new JButton("Go Last"); //Strings public String ysfilen = " "; public String yslast=" "; public String ysrecno = " "; //string collected from ytarecno public String ysnext = " "; public String ysprev = " "; public String ysour = " "; public String ysour2 = " "; public String ysour3 = " "; public String yssear=" "; public String ystemp= " "; public String ysresu= " "; public String ytaresutxt= " "; public String ystoreplace= " "; //String arrays public String[] yarr = new String[100000]; public String[] ycontsear = new String[1000]; //Ints public int yirecno=0; public int yinext=0; public int yiprev=0; public int yino=0; //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ public Component ymcreacompo() { //tool bars ytb.add(ytimb1); //adding get image button to tool bar //actionlistener for this is at the bottom after pack ytimb1.addActionListener(new yactiliste1()); ytb.add(ytimb2); ytimb2.addActionListener(new yactiliste2()); ytb.add(ytimb3); ytimb3.addActionListener(new yactiliste3()); ytb.add(ytimb4); ytimb4.addActionListener(new yactiliste4()); ytb.add(ytimb5); ytimb5.addActionListener(new yactiliste5()); ytb.add(ytimb6); ytimb6.addActionListener(new yactiliste6()); ytb.add(ytimb8); ytimb8.addActionListener(new yactiliste8()); ytb.add(ytimb9); ytimb9.addActionListener(new yactiliste9()); //........menubars,menus, menuitems yfra.setJMenuBar(ymb1); ymb1.add(ym1); ymb1.add(ym2); //Get ymi1.setMnemonic(KeyEvent.VK_I); ymi1.addActionListener(new yactiliste1()); ym1.add(ymi1); //.....Next ymi2.setMnemonic(KeyEvent.VK_I); ymi2.addActionListener(new yactiliste2()); ym1.add(ymi2); //.....Prev ymi3.setMnemonic(KeyEvent.VK_I); ymi3.addActionListener(new yactiliste3()); ym1.add(ymi3); //.....Update ymi4.setMnemonic(KeyEvent.VK_I); ymi4.addActionListener(new yactiliste4()); ym1.add(ymi4); //.....Sear Single ymi5.setMnemonic(KeyEvent.VK_I); ymi5.addActionListener(new yactiliste5()); ym1.add(ymi5); //.....Add ymi6.setMnemonic(KeyEvent.VK_A); ymi6.addActionListener(new yactiliste6()); ym2.add(ymi6); //Del ymi7.setMnemonic(KeyEvent.VK_I); ymi7.addActionListener(new yactiliste7()); ym2.add(ymi7); //..Search Continue ymi8.setMnemonic(KeyEvent.VK_I); ymi8.addActionListener(new yactiliste8()); ym2.add(ymi9); //.....spare ymi9.setMnemonic(KeyEvent.VK_I); ymi9.addActionListener(new yactiliste9()); ym2.add(ymi9); //Clean slate ymi10.setMnemonic(KeyEvent.VK_I); ymi10.addActionListener(new yactiliste10()); ym2.add(ymi10); //.....Go first ymi11.setMnemonic(KeyEvent.VK_I); ymi11.addActionListener(new yactiliste11()); ym2.add(ymi11); //.....Go last ymi12.setMnemonic(KeyEvent.VK_I); ymi12.addActionListener(new yactiliste12()); ym2.add(ymi12); //-------panels //..............upper panel ypanup.add(ytb); ypanup.setSize(20,45); ypanup.setBackground(Color.green); yfra.getContentPane().add(ypanup, BorderLayout.NORTH); yfra.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); ytaresu.setWrapStyleWord(true); //ytaresu.setRowHeight(12); ytaresu.setBorder(BorderFactory.createEmptyBorder(25,25,25,25) ); ytaresu.setFont(new Font("Times", Font.BOLD, 19) ); ytaresu.setForeground(Color.blue); ytaresu.setLineWrap(true); ytaresu.setEditable(true); JScrollPane yscroll = new JScrollPane(ytaresu); yscroll.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS); //shsbp yscroll.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS); yscroll.setOpaque(true); ypanup.add(yscroll); //////////////////////////////////////////////////////////////////////////////// GridLayout ygridl = new GridLayout(5,4); ypandow.setLayout(ygridl); ypandow.setOpaque(true); JLabel ylabfi = new JLabel("File->"); ylabfi.setBackground(Color.decode("#00aaff") ) ; ypandow.add(ylabfi); ytafilen.setText("lenin1.txt"); ypandow.add(ytafilen); ytafilen.setBackground(Color.decode("#ffff00") ); ytafilen.setEditable(true); ytafilen.setFont(new Font("Times", Font.BOLD, 20) ); ypandow.add(ytafilen); JLabel ylabrec = new JLabel("RecNo.->"); ylabrec.setBackground(Color.decode("#00aaff") ); ypandow.add(ylabrec); ytarecno.setText("0"); ypandow.add(ytarecno); ytarecno.setEditable(true); ytarecno.setFont(new Font("Times", Font.BOLD, 20) ); ypandow.add(ytarecno); ytasear.setText("India"); ytasear.setToolTipText("Enter your search term"); ypandow.add(ytasear); ytasear.setEditable(true); ytasear.setBackground(Color.decode("#ffaa00") ); ytasear.setFont(new Font("Times", Font.BOLD, 20) ); ypandow.add(ytasear); //get yb1.setMnemonic(KeyEvent.VK_I); yb1.addActionListener(new yactiliste1()); ypandow.add(yb1); //next yb2.setMnemonic(KeyEvent.VK_I); yb2.addActionListener(new yactiliste2()); ypandow.add(yb2); //prev yb3.setMnemonic(KeyEvent.VK_I); yb3.addActionListener(new yactiliste3()); ypandow.add(yb3); //update yb4.setMnemonic(KeyEvent.VK_I); yb4.addActionListener(new yactiliste4()); ypandow.add(yb4); //Search single yb5.setMnemonic(KeyEvent.VK_I); yb5.addActionListener(new yactiliste5()); ypandow.add(yb5); //add yb6.setMnemonic(KeyEvent.VK_I); yb6.addActionListener(new yactiliste6()); ypandow.add(yb6); //delete yb7.setMnemonic(KeyEvent.VK_I); yb7.addActionListener(new yactiliste7()); ypandow.add(yb7); //search multi yb8.setMnemonic(KeyEvent.VK_I); yb8.addActionListener(new yactiliste8()); ypandow.add(yb8); //Get No. yb9.setMnemonic(KeyEvent.VK_I); yb9.addActionListener(new yactiliste9()); ypandow.add(yb9); //clean the slate yb10.setMnemonic(KeyEvent.VK_I); yb10.addActionListener(new yactiliste10()); ypandow.add(yb10); //go first yb11.setMnemonic(KeyEvent.VK_I); yb11.addActionListener(new yactiliste11()); ypandow.add(yb11); //go last yb12.setMnemonic(KeyEvent.VK_I); yb12.addActionListener(new yactiliste12()); ypandow.add(yb12); yfra.getContentPane().add(ypandow, BorderLayout.SOUTH); yfra.pack(); yfra.setVisible(true); return ytaresu; } //meth creacompo //////////////////////////////////////////////////////////////////////////// /////////////////////////////////////////// public static void main(String[] args) { try { UIManager.setLookAndFeel( UIManager.getCrossPlatformLookAndFeelClassName()); } //try catch (Exception e) { } //catch //Create the top-level container and add contents to it. ayyotextedit yappl = new ayyotextedit(); yappl.ymcreacompo(); } //psvm ////////////////////////////////////////////////////Start private class yactiliste1 implements ActionListener{ public void actionPerformed(ActionEvent e1) { try{ ytaresu.setEditable(true); ysfilen = ytafilen.getText(); //ysrecno = ytarecno.getText(); yirecno = 0; //Files.readAllBytes(Paths.get is java8 function which helps to read the entire text file. ysour = new String(Files.readAllBytes(Paths.get(ysfilen) ),Charset.forName("UTF-8")); ysour2 = new String(Files.readAllBytes(Paths.get(ysfilen) ),Charset.forName("UTF-8")); ysour3 = new String(Files.readAllBytes(Paths.get(ysfilen) ),Charset.forName("UTF-8")); yarr= ysour.split(".\\n"); ytaresu.setText(yarr[0]); ytarecno.setText("0"); } //end try catch(Exception e1a){ e1a.printStackTrace(); } //end catch } //pv actioperfo } //actiliste ////////////////////////////////////////////// private class yactiliste2 implements ActionListener{ public void actionPerformed(ActionEvent e2) { try{ ytaresu.setEditable(true); ysfilen = ytafilen.getText(); ysrecno = ytarecno.getText(); yirecno = Integer.parseInt(ysrecno); yinext = yirecno + 1; //Files.readAllBytes(Paths.get is java8 function which helps to read the entire text file. //ysour = new String(Files.readAllBytes(Paths.get(ysfilen) ),Charset.forName("UTF-8")); yarr= ysour.split(".\\n"); ystemp = yarr[yinext] ; ytaresu.setText(ystemp); ysnext = Integer.toString(yinext); ytarecno.setText( ysnext ); } //end try catch(Exception e2a){ e2a.printStackTrace(); } //end catch } //pv actioperfo2 } //actiliste2 /////now actiliste3---------------------Prev private class yactiliste3 implements ActionListener{ public void actionPerformed(ActionEvent e3) { try{ ytaresu.setEditable(true); ysfilen = ytafilen.getText(); ysrecno = ytarecno.getText(); yirecno = Integer.parseInt(ysrecno); yiprev = yirecno - 1; //Files.readAllBytes(Paths.get is java8 function which helps to read the entire text file. //ysour = new String(Files.readAllBytes(Paths.get(ysfilen) ),Charset.forName("UTF-8")); yarr= ysour.split(".\\n"); ystemp = yarr[yiprev] ; ytaresu.setText(ystemp); ysprev = Integer.toString(yiprev); ytarecno.setText( ysprev ); } //end try catch(Exception e3a){ e3a.printStackTrace(); } //end catch } //pv actioperfo3 } //actiliste3 //alap alap alap alap4----------------------------update private class yactiliste4 implements ActionListener{ public void actionPerformed(ActionEvent e4) { try{ ysfilen = ytafilen.getText(); //It has become necessary to re-read the file in full, for repeated edits. ysour2 = new String(Files.readAllBytes(Paths.get(ysfilen) ),Charset.forName("UTF-8")); //System.out.print(ysour.length); //yarr= ysour2.split(".\\n"); yarr=ysour.split(".\\n"); ystemp = ytaresu.getText(); System.out.print(ystemp); String ysour3 = ysour2.replace(yarr[yirecno], ystemp ); //Files.write(Paths.get is a java8 method, to rewrite the entirefile Files.write(Paths.get(ysfilen), ysour3.getBytes() ); ytarecno.setText(Integer.toString(yirecno+1) ); //ytaresu.setText("Updated."); JOptionPane.showMessageDialog(null,"Updated"); ytaresu.setText(" "); ystemp = " "; } //end try catch(Exception e4a){ e4a.printStackTrace(); } //end catch } //pv actioperfo4 } //actiliste4 ///////////////////////actionliste5----------------Search single private class yactiliste5 implements ActionListener{ public void actionPerformed(ActionEvent e5) { try{ ytaresu.setText(null); ysfilen = ytafilen.getText(); ysrecno = ytarecno.getText(); yirecno = Integer.parseInt(ysrecno); yssear = ytasear.getText(); ytaresu.setEditable(true); //yinext = yirecno + 1; //Files.readAllBytes(Paths.get is java8 function which helps to read the entire text file. //ysour = new String(Files.readAllBytes(Paths.get(ysfilen) ),Charset.forName("UTF-8")); yarr= ysour.split(".\\n"); //Searching for the needle with a for loop for(int yno=0; yno < yarr.length; yno++){ if(yarr[yno].contains(yssear) ){ ysresu = ysresu + yarr[yno] + "\n" + "`"; ytarecno.setText(Integer.toString(yno) ); ytaresu.setText(yarr[yno]); //ytaresu.append(uresu); } //endif } //endfor loop of the usour ycontsear = ysresu.split("`"); yb4.setBackground(Color.white); yb7.setBackground(Color.white); yb6.setBackground(Color.red); ystemp = ytaresu.getText(); //JOptionPane.showMessageDialog(null,ystemp ); } //end try catch(Exception e5a){ JOptionPane.showMessageDialog(null,e5a ); } //end catch } //pv actioperfo5 } //actiliste5 //actionliste6==========================add private class yactiliste6 implements ActionListener{ public void actionPerformed(ActionEvent e6) { try{ ysfilen = ytafilen.getText(); //It has become necessary to re-read the file in full, for repeated edits. String ysour2 = new String(Files.readAllBytes(Paths.get(ysfilen) ),Charset.forName("UTF-8")); ytaresutxt = ytaresu.getText(); ysour2 = ysour2 + "\n" + ytaresutxt + "\n" ; //System.out.print(usour); String[] yarr= ysour2.split(".\\n"); yirecno = yarr.length; Files.write(Paths.get(ysfilen), ysour2.getBytes() ); //Files.write(Paths.get is a java8 method, to rewrite the entirefile //ysrecno = Integer.toString(yirecno); ytarecno.setText(ysrecno); JOptionPane.showMessageDialog(null, "Added new Record at the end" ); ytarecno.setText(Integer.toString(yirecno) ); } //end try catch(Exception e6a){ e6a.printStackTrace(); } //end catch } //pv actioperfo6 } //actiliste6 //actiliste7=================delete private class yactiliste7 implements ActionListener{ public void actionPerformed(ActionEvent e7) { try{ ysfilen = ytafilen.getText(); //It has become necessary to re-read the file in full, for repeated edits. ysour2 = new String(Files.readAllBytes(Paths.get(ysfilen) ),Charset.forName("UTF-8")); ysrecno = ytarecno.getText() ; yirecno = Integer.parseInt(ysrecno); yarr= ysour2.split(".\\n"); //We are using String.replaceAll(oldstring, newstring) method to replace the old record with new record. ystemp = ytaresu.getText(); ystoreplace = "\n\n" + ystemp; System.out.print(ystoreplace); ysour3 = ysour2.replace( ystoreplace , "" ); Files.write(Paths.get(ysfilen), ysour3.getBytes() ); //Files.write(Paths.get is a java8 method, to rewrite the entirefile ysrecno = Integer.toString(yirecno+1); ytarecno.setText(ysrecno); ytaresu.setText("Deleted. Clean Slate"); } //end try catch(Exception e7a){ e7a.printStackTrace(); } //end catch } //pv actioperfo7 } //actiliste7 //delete //below actiliste8=============Search continue private class yactiliste8 implements ActionListener{ public void actionPerformed(ActionEvent e8) { try{ ysfilen = ytafilen.getText(); ysrecno = ytarecno.getText(); yirecno = Integer.parseInt(ysrecno); yssear = ytasear.getText(); //yinext = yirecno + 1; yino++; ytaresu.setText(ycontsear[yino]); //Files.readAllBytes(Paths.get is java8 function which helps to read the entire text file. //ysour = new String(Files.readAllBytes(Paths.get(ysfilen) ),Charset.forName("UTF-8")); //yarr= ysour.split(".\\n"); //Searching for the needle with a for loop //for(int yno=0; yno < yarr.length; yno++){ //if(yarr[yno].contains(yssear) ){ //ysresu = ysresu + yarr[yno] + "\n" +"*"; //ytarecno.setText(Integer.toString(yno) ); //ytaresu.append(ysresu); //ytaresu.append(ysresu); //} //endif //} //endfor loop of the usour yb4.setBackground(Color.red); yb7.setBackground(Color.red); yb6.setBackground(Color.red); ytaresu.setEditable(false); } //end try catch(Exception e8a){ e8a.printStackTrace(); } //end catch } //pv actioperfo8 } //actiliste8 //actiliste9================Get No. private class yactiliste9 implements ActionListener{ public void actionPerformed(ActionEvent e9) { try{ ysfilen = ytafilen.getText(); ysrecno = ytarecno.getText(); yirecno = Integer.parseInt(ysrecno); //Files.readAllBytes(Paths.get is java8 function which helps to read the entire text file. ysour = new String(Files.readAllBytes(Paths.get(ysfilen) ),Charset.forName("UTF-8")); yarr= ysour.split(".\\n"); ystemp = yarr[yirecno] ; ytaresu.setText(ystemp); } //end try catch(Exception e9a){ e9a.printStackTrace(); } //end catch } //pv actioperfo9 } //actiliste9 //GetNo. //actilisti10================== clean slate private class yactiliste10 implements ActionListener{ public void actionPerformed(ActionEvent e10) { try{ ytaresu.setText("Clean Slate"); } //end try catch(Exception e10a){ e10a.printStackTrace(); } //end catch } //pv actioperfo10 } //actiliste10 //actiliste11===============go first private class yactiliste11 implements ActionListener{ public void actionPerformed(ActionEvent e11) { try{ ysfilen = ytafilen.getText(); //Files.readAllBytes(Paths.get is java8 function which helps to read the entire text file. ysour = new String(Files.readAllBytes(Paths.get(ysfilen) ),Charset.forName("UTF-8")); yarr= ysour.split(".\\n"); ytaresu.setText(yarr[0]); } //end try catch(Exception e11a){ e11a.printStackTrace(); } //end catch } //pv actioperfo11 } //actiliste11 //go first //actiliste12================go last private class yactiliste12 implements ActionListener{ public void actionPerformed(ActionEvent e12) { try{ ysfilen = ytafilen.getText(); //Files.readAllBytes(Paths.get is java8 function which helps to read the entire text file. ysour = new String(Files.readAllBytes(Paths.get(ysfilen) ),Charset.forName("UTF-8")); yarr= ysour.split(".\\n"); ytaresu.setText(yarr[yarr.length-1]); yslast = Integer.toString(yarr.length-1); ytarecno.setText( yslast ); } //end try catch(Exception e12a){ e12a.printStackTrace(); } //end catch } //pv actioperfo12 } //actiliste12 //go last } //pc

To continue सशेष ఇంకా ఉంది.

827 (5 of 10 series) XML TEXT EDITOR for adding, searching, deleting records in XML Files WITHOUT XML VALIDATION

How this XML Text Editor, made in Java 8 is different from the Text Editors given in previous blog posts? Ans: Though this is still a text editor, it has been made more XML friendly, when compared to the earlier posts. .java file SOURCE used for compiling is also given in full, in the text box below. This is in addition to the Zip file containing the Sample xml file- of a small medical xml -, the Main Class, and the sub classes, Readme Files, Screenshots. Read me is reproduced below, to have a clear idea:

README FOR : An XML TEXT Editor, notional record by record, with NO SAX PARSING, NO XML PARSING, NO XML VALIDATION.

LIMITATIONS / YET TO DO

This XML Text editor is yet a text editor, with many buttons added. It does not XMLparse, SAXparse, or XML validate. For maintaining simplicity, we have not added them.
Searches are case sensitive. That means while making search we have to keep in mind Capital Letter / small letter differences in the search word, and in the XML file.

Most XML files we get, usually do not have 'id No.' tag, which gives some individuality and uniqueness to the nodes. It is not possible to add idNos. to each record, manually, especially when Number of Records run into thousands. We have to write some Java code to add id Nos. to each node, programmatically and dynamically. I hope to do it shortly.

IMPORTANT LICENSING CONDITION

You can use this Java Class and the accompanying dictionary files only for your private purposes. You cannot put it to commercial use.

LEGAL DISCLAIMER

Use of this software is entirely at your risk and responsibility. No warranty or guarantee whatsoever, whatever be the purpose of its use. While we have tried our best to provide Users an error-free package, we cannot accept any liability/responsibility pecuniary or otherwise, whatsoever.

INSTALLATION

This Java class needs no installation. Just unzip. You will get your medicsmall.xml file, your java class, some screenshot jpgs of the windows you will get, and this readme file. All these things will be in YXPAJFR2 folder.

DEPENDENCIES.

You need Java 8 to run this package. You can either install it on your system, or keep it on a USB Drive or some C: D: etc. folders or in case of linux /home/usr/xxx folder.

WHERE JAVA 8 IS ALREADY INSTALLED IN THE MACHINE

In case Java 8 is installed on your System, you can straightaway, go to the dos prompt/Commandline and type java yxpajf2.

WHERE JAVA8 IS ON YOUR USB PENDRIVE / OR IN SOME OTHER FOLDER ON YOUR MACHINE, WITHOUT INSTALLATION

At the dos prompt/linux commandline/or other mac equivalent, go to the folder where you have unzipped this package. Then type (path to your Java file yxpajf2.

HOW TO USE THIS?

Download this zip file ysimpldicti.zip. Click here to download from my subdomain ayyo.x10.mx/downloadzip.php at free webhost site: x10hosting.com.. I have uploaded the file there.
Unzip at any place of your choice.


Whether you are in windows / Linux / probably Mac. go to the Commandline / Dos prompt.

Then type Path to your java 8/bin/java yxpajfr2 & press enter.

If you already have an installed Java8/JRE : command will be: java yxpajfr2.

Then your XMLTEXTEDITOR window will open.

1) You can edit the medicsmall.xml file given to you as a sample. Or you can use any other xml file you have, in any folder. First copy that file into the yxpajfr2 folder. Purpose: The Java classes and the xml file to be edited are to be on the same folder.

2) In the recordno. box you can type a number from 1 to maximum number (It depends on the number of nodes in the xml file you are editing). Then press get. Default starts from 0. Result will appear in the top Result box. As bonus, an additional file ybmedicdicti.txt file, MEDICAL DICTIONARY is also being given, in the folder. You can change the file name in the .txt text box to ybmedicdicti.txt, and use the Medical Dictionary. It can also be modified. Words can be added, and deleted.

3) You can also use next, prev buttons.

4) If you want to correct a word or its meaning, you change the text in the Text Box. Then press Update button. The word and its meaning in the text file will get changed.

5a) If you press "Search Single button" a message box will ask you to for the search word. Type it , and press ok. You will get the FIRST RECORD which matches your search term. Part-words can also be searched. After you get the Search result, you can change it and press update. If you want to the next record, you can use next and prev. buttons.

5b) If you press "Search Multiple Records button", a message box will ask you to for the search word. Type it , and press ok. You will get all the records which contains your search word/phrase. These records you cannot modify/update. Reason: They are situated in different parts of the file, in hundreds/thousands of records.
.

ADD BUTTON

6) If you want to add a new word, you have an add button. Here there is a problem. XML files have a root node at the begininng-top of the file, and at the end-bottom of the file. Different XML files have different root node names. When you press the add button, whatever is in the result box will be added as a new record. Thus there will be a root-node error.

TO SOLVE THIS PROBLEM:

First open your XML in any text editor such as note pad /gedit. Change the root node name from existing one (eg. or etc. and bottom or etc.), and change it to , respectively. And then start using this package for 'adding records'.

Then type the newrecord on the Result Area (Also called Clean Slate in our package. If it is not clean (blank), you can press the Clean Slate button at the bottom. Then The Result area will become clean. You type your new record(s) with the node names, elements names of your choice and press ADD button. At a time, even multiple records can be added in one go, after typing all those records.

7) If you have a delete button. If you press 'delete' button, without cautioning you, the current record in the result box will be deleted.

8) You can change the XML file, by typing some other XML file in the .txt box, and pressing 'get' button.

9)

NOTES WINDOW

This window gives suggestions to you, and provides you some notes. Yet to do: To make it context-responsive.

REPORTING BUGS, SUGGESTIONS
You are welcome to send to: ybhask @ gmail.com.
Following is the source code of the .java file. If readers wish to compile the source code themselves, they have to copy the .java text in the textbox below and paste into the .java file. The file is to be saved as yxpajfr2.java. For compiling the file , a command similar to the following: (path)/javac yxpajfr2.java. Then the file gets compiled into 1 main class and 10 sub classes with numbers 1 to 10. For opening window, command to be typed: (path)/java yxpajfr2 , then press enter.

//Editing a single record in user dictionary. This code is not memory efficient. Some forced repetitions too have taken place. But, it works rather slowly for large files. import java.awt.*; import java.awt.event.*; import java.io.*; import java.io.IOException; import java.nio.file.Files; import java.nio.file.Path; import java.nio.file.StandardOpenOption; import java.nio.file.Paths; import java.nio.charset.StandardCharsets; import java.nio.charset.Charset; import javax.swing.text.*; import java.util.regex.Pattern; import static java.lang.System.*; import javax.swing.*; //to use JButton, JFrame, JPanel, JScrollPane, JTextArea, JOptionPane import java.util.*; //Jframe is an object of swing. //important: FilesdotreadAllBites, Pathsdotgetfilenameinquotes. /**Notes: * For user defined buttons, text areas, methods etc. java naming conventions have not been followed. Purpose: To distinguish them from "J" items. * ub1=get button. * ub2=update button. * ub3=next button * ub4=prev button * ub5=Multiple search button * ub6=add button * ub7=delete button * ub8=show all button * ub9=Single Search Button * ufra is the JFrame. * uupanel = upper Jpanel * umpanel = middle Jpanel * ugrout = User gridLayout * utaresu is the UserTextArea for the result. This is in upper panel. * utarecno is the TeXt Area, for entering notional record No. * utafilen is the Text Area, for entering the xml/txt filename to use for editing. This is to be typed in hand. * ulfilen is the Label showing the default filename. * uscroresu is the JScrollPane for the Result Text Area * uscronote is the JScrollPane for the Notes/Suggestions Text Area * Searches are case sensitive. */ public class yxpajfr2 extends JFrame { public int uirecno; public static void yexpajfr2(){ JFrame ufra = new JFrame("XML FILES, TXT files MODIFY RECORD BY RECORD, notional WITH RECORD NOS."); JPanel uupanel = new JPanel(); //upper panel JPanel umpanel = new JPanel(); //middle panel JPanel ulpanel = new JPanel(); //lower bottom south panel //setting the attributes of middle panel umpanel.setBackground(Color.yellow); GridLayout ugrout = new GridLayout(5,3); umpanel.setLayout(ugrout); ufra.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JTextArea utaresu= new JTextArea(" ",15,25); //South Panel design JTextArea utanote= new JTextArea("NOTES/SUGGESTIONS",5,25); utanote.append( "\n Searches are case-sensitive. Searches part of the words also. \n You cannot update/delete multiple records at a time. Before Pressing add button, think twice."); utanote.append ("\n For the first time adding new records in an existing xml file, the root node of your xml file is to be converted to <X> at the beginning, and </X> at the bottom (end). Everytime it will not be necessary."); utanote.append ("\n This xmltexteditor is only a text editor. It does not parse/validate xml. "); ulpanel.add(utanote); utanote.setForeground(Color.decode("#ffff00") ); utanote.setBackground(Color.decode("#222222") ); utanote.setFont(new Font("Serif", Font.BOLD, 16) ); utanote.setLineWrap(true); //Adding horizontal and vertical scrolls to the result window JScrollPane uscroresu = new JScrollPane(utaresu); uscroresu.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS); uscroresu.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS); //Adding horizontal and vertical scrolls to the Notes/Suggestions window JScrollPane uscronote = new JScrollPane(utanote); ufra.getContentPane().setLayout( new BorderLayout() ); uscronote.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS); uscronote.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS); //Adding the panels to the Frame ufra.getContentPane().add(uscroresu, "North"); ufra.getContentPane().add(umpanel, "Center"); ufra.getContentPane().add(uscronote, "South"); utaresu.setEditable(true); utaresu.setLineWrap(true); utaresu.setOpaque(true); utaresu.setFont(new Font("Serif", Font.BOLD, 16) ); uupanel.setOpaque(true); JLabel ulfilen = new JLabel("Default file, you can change by typing."); umpanel.add(ulfilen); JTextArea utafilen= new JTextArea("medicsmall.xml",1,20); umpanel.add(utafilen); utafilen.setEditable(true); utafilen.setFont(new Font("Serif", Font.BOLD, 16) ); JLabel umrec = new JLabel("Record No."); umpanel.add(umrec); JTextArea utarecno= new JTextArea("0",1,5); umpanel.add(utarecno); utarecno.setEditable(true); JButton ub1 = new JButton("get"); JButton ub2 = new JButton("update"); JButton ub3 = new JButton("next"); JButton ub4 = new JButton("prev"); JButton ub5 = new JButton("search Multiple Records"); JButton ub6 = new JButton("add"); JButton ub7 = new JButton("del"); ub7.setBackground(Color.red); JButton ub8 = new JButton("shoall"); JButton ub9 = new JButton("Search Single Record- First Found"); JButton ub10 = new JButton("Clean the Slate"); umpanel.add(ub1); umpanel.add(ub2); umpanel.add(ub3); umpanel.add(ub4); umpanel.add(ub5); umpanel.add(ub6); umpanel.add(ub7); umpanel.add(ub8); umpanel.add(ub9); umpanel.add(ub10); //Display the window. ufra.pack(); ufra.setVisible(true); ////////////////////////////////////////////// //this actionlistener is for getrecord button ub1 ub1.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try{ String usfilen = utafilen.getText(); System.out.println(usfilen); String usrec = utarecno.getText(); int uirecno; uirecno = Integer.parseInt(usrec); int uinext = uirecno + 1; //Files.readAllBytes(Paths.get is java8 function which helps to read the entire text file. String usour = new String(Files.readAllBytes(Paths.get(usfilen) ),Charset.forName("UTF-8")); //System.out.print(usour); String[] uarr= usour.split("\\n\\n"); System.out.println(uarr[uirecno]); utaresu.setText(uarr[uirecno]); ub2.setFocusPainted(true); } //end try catch(Exception e1){ JOptionPane.showMessageDialog(null, "Sorry, not found or some error took place"); } //end catch } //endaction performed }) ; /////////////////////////////////////////////////////// //this actionlistener is for getrecord button ub3 ub3.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try{ String usfilen = utafilen.getText(); String usrec = utarecno.getText(); int uirecno; uirecno = Integer.parseInt(usrec); int uinext= uirecno + 1; String usnext = Integer.toString(uinext); //Files.readAllBytes(Paths.get is java8 function which helps to read the entire text file. String usour = new String(Files.readAllBytes(Paths.get(usfilen) ),Charset.forName("UTF-8")); //System.out.print(usour); String[] uarr= usour.split("\\n\\n"); System.out.println(uarr[uinext]); utaresu.setText(uarr[uinext]); utarecno.setText(usnext); ub6.setBackground(Color.black); } //end try catch(Exception e1){ JOptionPane.showMessageDialog(null, "Sorry, not found or some error took place"); } //end catch } //endaction performed }) ; //end addactionListenernewactionListener() /////////////////////////////////////////////////////// //this actionlistener is for getrecord prev button ub4 ub4.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try{ String usfilen = utafilen.getText(); String usrec = utarecno.getText(); int uirecno; uirecno = Integer.parseInt(usrec); int uiprev= uirecno - 1; String usprev = Integer.toString(uiprev); //Files.readAllBytes(Paths.get is java8 function which helps to read the entire text file. String usour = new String(Files.readAllBytes(Paths.get(usfilen) ),Charset.forName("UTF-8")); //System.out.print(usour); String[] uarr= usour.split("\\n\\n"); System.out.println(uarr[uiprev]); utaresu.setText(uarr[uiprev]); utarecno.setText(usprev); ub6.setBackground(Color.black); } //end try catch(Exception e1){ JOptionPane.showMessageDialog(null, "Sorry, not found or some error took place"); } //end catch } //endaction performed }) ; //endof prev button ib4 addActionListener( new action ActionListener(){ /////////////////////////////////////////////////////// //this actionlistener is for getrecord search button ub5 ub5.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try{ utaresu.setText(" "); String usfilen = utafilen.getText(); String usear = JOptionPane.showInputDialog( "Enter your searchword"); //Files.readAllBytes(Paths.get is java8 function which helps to read the entire text file. String usour = new String(Files.readAllBytes(Paths.get(usfilen) ),Charset.forName("UTF-8")); String[] uarr= usour.split("\\n\\n"); String uresu = " "; //Searching for the needle with a for loop for(int uno=0; uno < uarr.length; uno++){ if(uarr[uno].contains(usear) ){ uresu = uresu + uarr[uno] + "\n"; utarecno.setText(Integer.toString(uno) ); utaresu.append(uresu); } //endif } //endfor loop of the usour ub2.setBackground(Color.black); ub7.setBackground(Color.red); ub6.setBackground(Color.black); } //end try catch(Exception e1){ JOptionPane.showMessageDialog(null, "Sorry, not found or some error took place"); } //end catch } //endaction performed }) ; //endof prev button ib4 addActionListener( new action ActionListener() /////////////////////////////////////////////////////// //this actionlistener is for getrecord search Single Record button ub9 ub9.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try{ utaresu.setText(" "); String usfilen = utafilen.getText(); String usear = JOptionPane.showInputDialog( "Enter your searchword"); //Files.readAllBytes(Paths.get is java8 function which helps to read the entire text file. String usour = new String(Files.readAllBytes(Paths.get(usfilen) ),Charset.forName("UTF-8")); String[] uarr= usour.split("\\n\\n"); String uresu = " "; //Searching for the needle with a for loop for(int uno=0; uno < uarr.length; uno++){ if(uarr[uno].contains(usear) ){ uresu = uresu + uarr[uno] + "\n"; utarecno.setText(Integer.toString(uno) ); utaresu.setText(uresu); uno= uarr.length; } //endif } //endfor loop of the usour //ub2.setBackground(Color.black); //ub7.setBackground(Color.red); ub6.setBackground(Color.black); } //end try catch(Exception e1){ JOptionPane.showMessageDialog(null, "Sorry, not found or some error took place"); } //end catch } //endaction performed }) ; //endof prev button ib4 addActionListener( new action ActionListener() //////////////////////////////////////////////////////// //this actionlistener is for button ub2 update ub2.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { int uirecno = Integer.parseInt(utarecno.getText() ); try{ String usfilen = utafilen.getText(); //It has become necessary to re-read the file in full, for repeated edits. String usour2 = new String(Files.readAllBytes(Paths.get(usfilen) ),Charset.forName("UTF-8")); //System.out.print(usour); String[] uarr= usour2.split("\\n\\n"); String ustemp = utaresu.getText(); //We are using String.replaceAll(oldstring, newstring) method to replace the old record with new record. String usour3 = usour2.replaceAll(uarr[uirecno], ustemp ); //Files.write(Paths.get is a java8 method, to rewrite the entirefile Files.write(Paths.get(usfilen), usour3.getBytes() ); }//endtry catch (Exception e2){ JOptionPane.showMessageDialog(null, "Sorry something went wrong."); } //endcatch } //actionevent e }) ; //ub2 actionlistener //////////////////////////////////////////////////////////////////// //this actionlistener is for button ub6 add ub6.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { int uirecno; try{ String usfilen = utafilen.getText(); //It has become necessary to re-read the file in full, for repeated edits. String usour2 = new String(Files.readAllBytes(Paths.get(usfilen) ),Charset.forName("UTF-8")); String usutaresu = utaresu.getText(); //adding usutaresu to usour2 usour2 = usour2.replace("</X>", ""); usour2 = usour2 + "\n" + usutaresu + "\n" + "</X>" ; //System.out.print(usour); String[] uarr= usour2.split("\\n\\n"); uirecno = uarr.length; Files.write(Paths.get(usfilen), usour2.getBytes() ); //Files.write(Paths.get is a java8 method, to rewrite the entirefile String usrecno = Integer.toString(uirecno); utarecno.setText(usrecno); JOptionPane.showMessageDialog(null, "Added new Record at the end" ); utarecno.setText(Integer.toString(uirecno) ); }//endtry catch (Exception e2){ JOptionPane.showMessageDialog(null, "Sorry something went wrong."); } //endcatch } //actionevent e }) ; //ub6 actionlistener ////////////////////////////////////////////////////// //this actionlistener is for button ub7 delete ub7.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { int uirecno; try{ //int response = JOptionPane.showConfirmDialog(null, "Do you want to continue?", "Confirm", JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE); String usfilen = utafilen.getText(); //It has become necessary to re-read the file in full, for repeated edits. String usour2 = new String(Files.readAllBytes(Paths.get(usfilen) ),Charset.forName("UTF-8")); String usutarecno = utarecno.getText() ; uirecno = Integer.parseInt(usutarecno); //adding usutaresu to usour2 String[] uarr= usour2.split("\\n\\n"); //We are using String.replaceAll(oldstring, newstring) method to replace the old record with new record. String ustemp = utaresu.getText(); String ustoreplace = "\\n\\n" + uarr[uirecno]; System.out.print(ustoreplace); String usour3 = usour2.replaceAll( ustoreplace , "" ); Files.write(Paths.get(usfilen), usour3.getBytes() ); //Files.write(Paths.get is a java8 method, to rewrite the entirefile String usrecno = Integer.toString(uirecno+1); utarecno.setText("0"); JOptionPane.showMessageDialog(null, "Deleted. You can enter fresh recordno. in recordno. box and press get. Alternatively you can use search button. " ); }//endtry catch (Exception e2){ JOptionPane.showMessageDialog(null, "Sorry something went wrong."); } //endcatch } //actionevent e }) ; //ub7 actionlistener for delete //showallsssssssssssssssssssssssssssssssssssssssssssssssssssssssshowall ub8.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { int uirecno; try{ //Getting usrinput name of the file to use String usfilen = utafilen.getText(); //Files.readAllBytes(Paths.get is java8 function which helps to read the entire text file. String usour = new String(Files.readAllBytes(Paths.get(usfilen) ),Charset.forName("UTF-8")); String[] uarr= usour.split("\\n\\n"); String uresu = " "; //Searching for the needle with a for loop for(int uno=0; uno < uarr.length; uno++){ uresu = uresu + uarr[uno] + "\n"; utarecno.setText(Integer.toString(uno) ); utaresu.setText(uresu); } //endfor loop of the usour } //end try catch(Exception e1){ JOptionPane.showMessageDialog(null, "Sorry, not found or some error took place"); } //end catch } //endaction performed }) ; //endof prev button ib4 addActionListener( new action ActionListener() //.................................. ////////////////////////////////////////ub10 clean the slate/////// ub10.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { int uirecno; try{ utaresu.setText(" "); } //end try catch(Exception e1){ JOptionPane.showMessageDialog(null, "Sorry, not found or some error took place"); } //end catch } //endaction performed }) ; //endof prev button ib10 CLEAN THE SLATE addActionListener( new action ActionListener() //......................... }//end meth yexpajfr //.................................. public static void main(String[] args) throws IOException { //yexpajfr ydr = new yexpajfr(); yexpajfr2(); } //endpsvm } //endpc ydictirecno
To continue. सशेष. ఇంకా ఉంది.

824 (4 of 10 in the series) Java 8 Text Editor to edit bits/chunks of text files on RECORD BY RECORD basis

PURPOSE OF THIS RECORD_TEXT_EDITOR: In traditional text editors, text is edited as entire mass or lump. In this Record Text Editor or Text_Record_Editor, text is broken into small chunks. Each chunk is taken as a record. A text file, when broken into 'bits', can have any number of bits/chunks/fragments, just as a bread can have any number of loaves / slices / layers / strata ranging from 1 to infinity. Then these chunks are loaded into a java text area, in their natural order as in the original file. Now, these chunks can be browsed / edited / deleted and transported to the original text file, to their original location.

There is also a Search button. You can search, and if you find some record containing your search term, you can browse/ edit / delete. Occasionally, after editing / deleting, you can go to the original file using a traditional editor and see how the modifications have taken place.

You have a Delete button, which is in red color, because it is to be used carefully.

LIMITATIONS AND LEGAL DISCLAIMERS

This set of Java 8 classes is still in an experimental stage. There are numerous bugs and shortcomings. After getting reader/user feedback, if they will be kind enough to send, this ybrao-a-donkey will try to rectify them.

This piece of software class(es) and the accompanying medicdicti.txt file is being provided, absolutely with no warranties/guarantees whatsoever. The medicdicti.txt file is being provided as a SAMPLE TEXT which is NOT TO BE USED FOR MEDICAL / COMMERCIAL / SERIOUS PURPOSES. However, the file can be freely edited by users and kept with the user for personal reference. This medicdicti.txt file is nearly 14.8 mb in size, and has about 1,88,000 records. With ybrao-a-donkey also, it is in a very very primitive rough draft condition, under editing stage.

DOES IT WORK IN WINDOWS / MAC? WILL IT WORK ONLY IN UBUNTU / LINUX?

I have compiled, and used it in Ubuntu 10.04 version of Linux. It works reasonably well. As ybtextrecoredit class is based on Java ONLY, it is expected to work on Windows and Mac machines also.

HOW TO DOWNLOAD?

At this moment, I have uploaded the ytextrecoredit.zip file containing the Java class, txt file, and this read me file, a screenshot jpg image file, to my free web host http://ayyo.x10.mx. Here, I furnish a link for the download: Click here to go to my sub-domain ayyo.x10.mx, for downloading.. There are no advertisements at the site. When the download window appears, instead of selecting 'open', select 'save', and save it to your choice folder. The zip file has a size of 5.1 mb, including the default sample medical dictionary text file which has approx. 1,88,000 records and is 14.8 mb. approx. size.

HOW TO INSTALL?

There is no need of installation. It works with java8 version, and with a java command plus the classname when typed at dos prompt / commandline. Go to a folder of your choice and unzip the ytextrecordedit.zip file. You will get ytextrecoredit folder. It contains all the above files, i.e.

java classes, medicdicti.txt file, readme, screenshot.

IF YOU WANT TO EDIT TEXT FILES OTHER THAN WHAT I AM GIVING YOU AS DEFAULT (medicdicti.txt)?

No problem. The purpose of this record-chunk editor is to edit all types of text files, not only text dictionaries. You can copy and paste those other text files, into this ybtextrecoredit folder, and change the default text file at run time.

Alternatively you can copy the ytextrecordedit classes in the folder to somewhere else where those text files are located, and edit there itself. There is one main class + 7 associated sub classes with NOs. 1 to 7 with the same name but Nos. 1 to 7 are added. You have to copy all these. But a better thing will be to copy your zip file downloaded by you, anywhere else you want and unzip there.

DEPENDENCIES?

These java 8 classes work only if you have jdk8 or an appropriate jre8. You can download the jdk8 or jre8 from Oracle.Java website.

HOW TO START USING?

If you have java8 already installed in your system:
you can go to the dost prompt / linux commandline / mac... and type java ytextrecoredit and press enter.

If you want to use java8 from a usb pendrive (I often do), without installing it:
You can use java8 from pen drive, or from some folder like Desktop or My Documents etc.
From the dos prompt / commandline go to that folder, wherever the java8 /jdk8 / jre8 files are situated.

Then type: path (with \ in case of windows, and with / in case of Linux) java ytextrecoredit and press enter.

The window shown in the screenshot will open. Then you can start working with medicdicti.txt. If you want you can change the text file, and start editing.

Question: At post No. 823 also you have given a Text Records Editor, with similar features. How this is an improvement over the previous one?

Ans: After using the Records Editor given by me to the users, for some days, I felt that the Text Area which shows the result, should have a horizontal scroll bar, and vertical scroll bar, to HANDLE LARGER SIZE CHUNKS OF RECORDS. Hence, a JScrollPane has been added with compulsory horizontal and vertical scroll bars, irrespective of the size of the current record which is being shown. In the previous version, when a record of size larger than the JTextArea came for showing, some buttons disappeared, because there was no place on the JFrame and JPanels. After adding JScrollPane with compulsory horizontal and vertical scroll bars, this problem of encroachment by the upper panel of result, into the lower panel of buttons set, has been overcome. However, my readers can suggest other solutions.

This yb-donkey's IMMENSE THANKS OF GRATITUDE TO NETIZEN GEEKS

I have been learning the Java 8, with the help of numerous threads and tutorials available on the internet, and NOT from any Institute/College. All this, I am getting free of cost. While it is not practical/possible for me, to send individual thanks emails, I am expressing it openly. Hail the Linux and Java Community!
To continue. सशेष. ఇంకా ఉంది.

823 Java 8 Class for adding, modifying, deleting, searching records in multiple dictionary txt files

As part of myself being bitten by the Java 8 bug, now, I am providing to my Readers, a Java Class, useful for accessing, and amending .txt files. This is not a traditional text editor. The ydictiedit.class (Java 8) being provided by me, is mainly intended to amend the words in dictionaries created as '.txt' files. This ydictiedit class works with a model of add / delete / search / get / net / prev buttons, which we normally find in case of database files such as mysql, sqlite, postgresql, old model flat files like dbase, msaccess etc. etc. Most of the traditional database models involve use of 'sql' commands, 'sql' queries and 'sql' reports. For additional security they may even require userids, passwords, servers etc. etc.

Question: We could have used 'xml' dictionary files, and xml parsers?

Ans: Use of 'xml' files need schema, which itself is somewhat complex. Opening an xml data file, becomes difficult, even if there is 'slightest' error in the tags. Besides, xml files tend to be heavy in memory size. Very often, they require use of special 'xml' editors for adding records and validation.

Taking all these things into consideration, I have chosen the 'txt' files for storing data of words.

Question: We could have used csv (comma separated values) files?

Ans: Use of 'comma separated value' csv files is also cumbersome for ordinary persons. The benefit using text files is, users can always open the txt files in traditional text editors such as notepad, MSword, gedit, geany etc., and add/modify/delete words there direct.

Question: Java 8 is also complex. We could have used 'php'?

One php script I have already given in our previous blog posts. I have also given one Medical Dictionary Sample Text with Java 8.

The main advantage of the new ybdictiedit.class being given by me with two dictionary text files (1. simple dictionary 2. Sample Medical Dictionary (already given in the previous post now given here also), is: User will have a greater choice. If he has ten dictionaries in the folder say compu.txt, physic.txt, chemistry.txt, anatomy.txt, pharmacology.txt etc. etc., he can chose any of the text files for adding, deleting, modifying, browsing, records. Besides, Java classes work in almost all OSes i.e. Windows, Linux, Mac. Hence, we get the benefit of platform independence.

Traditional text editors are like 'eating bread' as whole lumps, instead of slicing them. ybdictiedit class cuts them into loaves / slives, using a delimiter '^`'. For this reason only, it has been suggested that while adding records we have to start every word with "^`".

HERE IS A SCREENSHOT OF HOW THE YBDICTIEDIT CLASS LOOKS when it is invoked from Commandline (Dos prompt)

.

LINK for downloading the ydictiedit class

Click to go to http://ayyo.x10.mx/downloadzip.php. This zip file has been uploaded by me to, and stored with my free web host, xhosting.com.. There are no advertisements.

When the download window appears, select 'save' instead of 'open'. After saving the file to a folder of your choice, say 'Desktop', you can unzip it with any unzip facility. Then you will get a folder with name 'ysimpldicti'. This folder contains 1. ydictiedit java 8 class, and its associate sub classes. 2. 2 dictionary text files: 1. simpldicti.txt 2.ybmedicdicti.txt. 3. A screenshot jpg. 4. Readme file. This contains suggestions on how to use. No need of installation. 5. Java 8 also, there is no need to install. 'java8' folder can be stored on a USB pendrive, and can be accessed from command line /dos prompt using path/java ydictiedit command.

This piece of software is being provided for FREE DOWNLOAD only for EDUCATIONAL AND RESEARCH PURPOSES. Kindly do not put to any commercial purposes.

For other instructions pl. see readme file there.

To continue. सशेष. ఇంకా ఉంది.

820 Java Code for Creating a chief panel, two sub panels, and inserting them into a JFrame

Here is a java 8 code, for designing one main panel, two sub panels, and inserting them into a JFrame, and then showing them alternatively with two buttons. //Creating Two sub panels, one main panel, and showing them in a JFrame in a Customized manner.
//Compiled successfully on Java8. May work on lower versions also.

//Standard Naming practices have not been followed.

//My immense gratitude to Netizens of magnanimity.

//To compile this, it should be saved in a text file named ycardlayou.java.

//Compilation at Commandline: yourpathtojava /or javac ycardlayou.java.

//Using the class generated, to see the result: yourpathtojava / or java ycardlayou //Creating Two sub panels, one main panel, and showing them in a JFrame in a Customized manner. //Compiled successfully on Java8. May work on lower versions also. //Standard Naming practices have not been followed. //My immense gratitude to Netizens of magnanimity. //To compile this, it should be saved in a text file named ycardlayou.java. //Compilation at Commandline: yourpathtojava /or javac ycardlayou.java. //Using the class generated, to see the result: yourpathtojava / or java ycardlayou import java.awt.*; //To use ActionListener, ActionEvent import java.awt.event.*; import javax.swing.*; import java.io.*; //ycardlayou is the public class //ycardlayou() is its method //upanel1 is the main panel //upanel11 is first sub panel //upanel12 is second sub panel //ufra is JFrame. //ub1 is first button //ub2 is second button public class ycardlayou { JFrame ufra; final JPanel upanel1=new JPanel(); JPanel upanel11=new JPanel(); JPanel upanel12=new JPanel(); final CardLayout ucard=new CardLayout(); public ycardlayou() { ufra = new JFrame("Card Layout which has one main panel, two subpanels"); ufra.setSize(500,500); ufra.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //adding labels to subpanels upanel11.add(new JLabel("This is first sub panel")); upanel11.setBackground(Color.red); upanel12.add(new JLabel("This second sub panel")); upanel12.setBackground(Color.green); //Defining adn adding buttons to subpanels JButton ub1=new JButton("Show first sub panel"); JButton ub2=new JButton("Show second sub panel"); upanel11.add(ub2); upanel12.add(ub1); ///////////////////////////////// //designing mainpanel upanel1 with sub panels upanel 11, and upanel 12. upanel1.setLayout(ucard); upanel1.add(upanel11, "one"); // id one refers upanel11 upanel1.add(upanel12, "two"); // id two refers upanel12 upanel1.setVisible(true); //////////////////////////////////button1 addactionlistener///////////////// //addactionlistenerNewActionListener for button ub1.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent ae){ upanel11.setVisible(true); upanel12.setVisible(false); //ucard.show(upanel11, "two"); // shows upanel12 } //actionperformedactionevent }); //addActionListner ////////////////////////////////////second button//////////////// //adding actionlistenernewactionlistener to ubtn2 ub2.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent ae){ upanel12.setVisible(true); upanel11.setVisible(false); //ucard.show(upanel12, "one"); // shows upanel11 } //actionevent }); //actionlistener /////////////////////////////////////////////////////////////////// //adding upanel1 mainpanel to ufra ufra.add(upanel1); ufra.pack(); ufra.setVisible(true); } //end ycardlayoumetho public static void main (String[] args) { ycardlayou yucl= new ycardlayou(); } //psvm } //pc

818 JAVA 8 CODE (Part 1/2), FOR A USER CUSTOMIZABLE MEDICAL DICTIONARY

Some of my readers thought that our this blog is a spiritual blog filled with preachings, prayers Gods and Goddesses, and philosophical discourses, accompanied by some religious propaganda, which is not true. Those things, I shall handle separately. As available evidence uptodate does not provide adequate proof for the existence of God, I lean towards atheism (the word coined by me is: aguardianism (There is no guardian/creator-protector for this Universe). In the same way, for the problems of an extremely poor and highly over-populated country like India, I have identified 'Communism / Marxism / True Complete Socialism" as solutions, without parting with democracy. With these goals, I have planned to make a set 1000 posts at this blog covering not only atheism, TC Socialism, the Problems of Telugu language speaking people, and numerous other things ranging from Music to Herbal Medicine. Of late, my readers may find that there is a slow-down of posts here. The slow-down is not because there is a Writer's Block, but because I have been enamoured with educating myself in I.T. For the last some years I have been working on Javascript, and PHP Script. My work in PHP can be seen at ayyo.x10.mx, for which I have given links in the side bar. Now, the bug of Java 8 bit me.

I burnt some midnight oil in getting at least a little minimum skill in writing java 8 code, and compiling them into usable classes. I am an aficionado and connoisseur of Java 8, in the sense that I am not an expert/pundit in Java, but I am very enthusiastic about it, because it is platform-independent, unlike several Windows applications. In the process, I have visited many websites which contain tutorials of Java to study .java files. From this experience I find that there are many magnanimous netizens with generosity, volition, and willingness to share their experiences to new entrants and give their suggestions. I have benefited much from the study of Java codes available on Net. I must also express my gratitude to SourceForge.net which a Great Treasure House of Open Source Software.

Though my preferences lie with herbal remedies, I have a cognition and perception that in case of emergencies, Modern Medicine (also called allopathic medicine by Homoeopathic Practioners), ought to be our last resort. I have already written, with some reasonable analysis, that using Homoeopathic medicines will be like 'wearing talismans', because homoeopathic medicines do not contain medical substances, because they are lost owing to excess dilution during succusion and trituration. I have already written a few blog poss about the risks involved in using mineral Ayurvedic remedies which contain heavy metals like mercury, lead and strong chemicals like sulphur. About Herbal medicines, we shall handle separately.

When we go to modern medical doctors and hospitals, we get charged heavily. We also get lot of prescriptions. We throw our money in dispensaries of the hospials / medical shops, and we ourselves swallow/get injected or make our relatives to swallo or get injected. I always felt that there is a need for our School and College curricula to contain some subjects/papers/chapters on pathology, patho-physiology, Pharmacology and phytochemistry.

Though numerous pdf medical dictionaries, and online medical dictioanries are available on net, there is need for a user customizable Medical Dictionary, which can be used OFFLINE, on ALL PLATFORMS and OS-es. PHP Scripts are browser based, and are suitable for online use. We can also use them offline, provided we have an apache server, installed. Then we must know how to store php script files and data files on localhost.

For creation/design of a user-customizable offline medical dictionary, I felt that Java 8 will suit most. Keeping this in mind, I have designed one Java 8 code, which can be compiled to generate a java class. Here it is: //Java 8 Code for reading from a text-file, split it into bits, search in each bit for the search word, and then show the results. import java.awt.BorderLayout; import java.awt.*; import java.awt.Color; import java.awt.event.*; import java.io.*; import java.nio.file.Files; import java.nio.file.Paths; import java.nio.charset.StandardCharsets; import java.nio.charset.Charset; import javax.swing.text.*; import java.util.regex.Pattern; import static java.lang.System.*; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTextArea; import javax.swing.UIManager; import javax.swing.*; import java.util.*; import javax.swing.text.AttributeSet; import javax.swing.text.SimpleAttributeSet; import javax.swing.text.StyleConstants; import javax.swing.text.StyleContext; import java.io.IOException; //Very important: Here I have given the userdefined classname as ybmedicdicti. You can given any name as you like. But make sure that your code is saved with the same .java file name. Example: you have given public class name as danieldicti. Then .java file name should be danieldicti.java. File names and class names are case sensitive. Java customs have a naming tradition for classes and files. As an amateur, I am not following it. //Simply, I shall prefer lower case for all things which are "user-defined". This is because, if we forget to press the shift button, we get an error report. Then valuable time will be wasted in debugging and re-testing. But pl note: Java library functions from jdk8 and jre will have everything in Mixed case, as can be seen from the above imports, and also in the following definitions and declarations. public class ybmedicdicti extends JFrame { public static void main(String[] args) throws IOException { //uframe is userdefined jframe JFrame uframe = new JFrame("Medical Dictionary Search using java"); //uupanel is userdefined upper jpanel. This conains the textarea for showing result. JPanel uupanel = new JPanel(); //ulpanel is user defined lower jpanel. This contains the text area for typing search word, and search button JPanel ulpanel = new JPanel(); //North locates the upper panel on top uframe.getContentPane().add(uupanel, "North"); //South locates the lower panel at bottom. uframe.getContentPane().add(ulpanel,"South"); //utarea is the user defined textarea for showing result. 20,50 are height and width. JTextArea utarea= new JTextArea(" ",20,50); //We add a jscrollpane to the text area, so that if the results exceeds the 20-50 size, there will be a vertical scroll. uupanel.add(new JScrollPane(utarea)); //ulrec is the user defined label. JLabel ulrec = new JLabel("Enter your search word"); //We add the label ulrec to the ulpanel ulpanel.add(ulrec); //We are setting the background color of label 'Enter Search Word' to yellow. ulrec.setBackground(Color.yellow); //We are making label opaque. ulrec.setOpaque(true); //utasearchword is the userdefined text area for typing the search word. 2 is its height, 15 is its width. JTextArea utasearchword= new JTextArea("Type here ",2,15); //We add the utasearchword to the ulpanel (lower panel) ulpanel.add(utasearchword); //ubrec is the jbutton for clicking to get the search word. JButton ubrec = new JButton("Get the word "); //We are setting button's color to pink. ubrec.setBackground(Color.magenta); //We are adding the button ubrec to the userdefined lower panel ulpanel. ulpanel.add(ubrec); //We are enlarging the font size of the Result window to 20. utarea.setFont(new Font("Courier", Font.BOLD, 20)); //We are setting the foreground color of Result window to white. utarea.setForeground(Color.white); utarea.setBackground(Color.black); //We are setting the linewrap of the Result window. utarea.setLineWrap(true); //Display the window. uframe.pack(); uframe.setVisible(true); ///////////////////////////////////////////////////////////////////////////////////////////////// //Now, we shall read the content of the text file which contains the words and meanings of the Medical Dictionary. ybmedicdicti.txt is the text file which has to be stored in the same directory as the ybmedicdicti class file. The words and meanings given in the text file are only samples. These words have been collected from courtesy .gov websites of Government of U.S.A. They hold the copyrights for them. //This seems to be available only on Java 8. The user defined variable usour reads the text file. String usour = new String(Files.readAllBytes(Paths.get("ybmedicdicti.txt") ),Charset.forName("UTF-8")); //We split the string obtained from the text file into an array, using a delimiter '^". uarr is the user-defined array obtained. It contains around 10000 records of words and meanings. String[] uarr= usour.split("\\^"); //This actionlistener will start working when we type the searchword in the search window, and click the 'get' button. ubrec.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try{ //We shall say "Results" in the Result window utarea.setText("Results: "); //usrec is the userdefined variable, which get the text typed by us in the Search Window. String usrec = utasearchword.getText(); //We add ` to the searchword, because we want to restrict search only to the word portion. We have to avoid search in the meanings area, though it can also be done. By converting the search word into lower case, we are making the search case insensitive. String usrec2 ="`" + usrec.toLowerCase(); //This uresultno will give serial Nos. to the result. int uresultno = 1; //Now, we are searching all the elements in the array of about 10000 records, for the search string. Variable u is the starting record i.e. 0. It will go upto the length of the array. for(int u=0; u < uarr.length ; u++){ //We are converting the array element to lowercase, to make the search case insensitive. if(uarr[u].toLowerCase().contains(usrec2)){ //Now we are adding the result record to the Result Window. utarea.append("\n" + "Result No: " + uresultno + "\n" + "Record No: " + u + "\n\n"); utarea.append(uarr[u]) ; //Increasing the uresultno is, to show raised result no. uresultno++; } //endfor u loop } //end of ifusour contains } //end try //error catching method catch(InputMismatchException e1){ JOptionPane.showMessageDialog(null, "Sorry not found"); } //end catch } //endaction performed }) ; } //endpsvm } //endpc

ZIP FILE CONTAINING ABOVE CODE, COMPILED CLASS, TEXT FILE SAMPLE OF THE MEDICAL DICTIONARY & a README

The compressed file ybmedicdicti.zip has been kept by me at SourceForge.Net for easy download. If you wish to download it and use it offline for NON COMMERCIAL EDUCATIONAL PURPOSES, here is the link: Click to download a zip file of the medic dicti class and text sample .

To continue.