how to paint a particular word in a string ?

[naved momin]

i m making a text editor in that when ever user type a certain java keyword like void just that word will be appeared as blue and rest other work should be red
i m using keylistener but unfortunately my logic is notworking here
what is happening here is when i write some thing like
class void then i press enter then the color of the text changes to red and from then on the entire text is written in red color
same is the case with blue ....so please can you tell me where i m wrong and what is key thing in this which i m missing ?

public void keyTyped(KeyEvent e) {
       List list = new ArrayList();
       list.add("void");
       String str = pane.getText();
       if(str.Equals(list))
       {
           pane.setForeground(Color.BLUE);
       }
       else
       {
           pane.setForeground(Color.RED);
       }

    }

[Rob Spoor]

Check out javax.swing.text.Highlighter. In short:
- retrieve the text field's current highlighter.
- if there is none (null is returned) create one (DefaultHighlighter) and set it.
- get a Highlighter.HighlightPainter (usually DefaultHighlighter.DefaultHighlightPainter).
- add a highligh to the Highlighter.

[naved momin]

Rob Spoor wrote:Check out javax.swing.text.Highlighter. In short:
- retrieve the text field's current highlighter.
- if there is none (null is returned) create one (DefaultHighlighter) and set it.
- get a Highlighter.HighlightPainter (usually DefaultHighlighter.DefaultHighlightPainter).
- add a highligh to the Highlighter.

i have searched in the google but all examples are quite complex so this is my code can you give a example code to color a particular text like "void"
so that i can learned it in a simple way
please

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package highlighter;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import javax.swing.JFrame;
import javax.swing.JTextPane;
import javax.swing.text.BadLocationException;
import javax.swing.text.DefaultHighlighter;

/**
 *
 * @author Admin
 */
public class Highlighter implements KeyListener{

    /**
     * @param args the command line arguments
     */
    JTextPane text;
    void gui()
    {
        JFrame frame = new JFrame();
        text = new JTextPane();
        frame.add(text, BorderLayout.CENTER);






        String s = text.getText();
        s.indexOf(s);
        int lenght = s.length();



        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.pack();
        frame.setVisible(true);
    }
    public static void main(String[] args) {
        // TODO code application logic here
        new Highlighter().gui();
    }

    public void keyTyped(KeyEvent e) {






    }

    public void keyPressed(KeyEvent e) {
        throw new UnsupportedOperationException("Not supported yet.");
    }

    public void keyReleased(KeyEvent e) {
        throw new UnsupportedOperationException("Not supported yet.");
    }

}

[Rob Spoor]

Moving to our user interface forum.