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Message:

Thanx

Posted by ruchi and hema on January 04, 2001 at 8:46 AM

> Try the following Test.java. The consume () method works and it lets you type only digits ( 0 thru 9 ) .

> ///////////////////Test.java

> import java.awt.* ;
> import java.awt.event.* ;
> import javax.swing.*;

>
> public class Phone extends JFrame {
> JTextField phone = new JTextField ( ) ;
>
> public Phone ( ) {
> Container cp = getContentPane ( ) ;
> cp.add ( phone, "North" ) ;
> phone.addKeyListener (
> new KeyAdapter ( ) {
> public void keyTyped ( KeyEvent e ) {
> int key = e.getKeyChar() ;
>
> // Also allow Delete and BackSpace keys to work
> if ( !( ( key >= 48 && key <= 57 ) || ( key == KeyEvent.VK_DELETE ) || ( key == KeyEvent.VK_BACK_SPACE ) ) ) {
> e.consume ( ) ;
> }
>
> }
> }
> ) ;
> }
>
> public static void main ( String[] args ) {
> Phone p = new Phone ( ) ;
> p.setBounds ( 20, 20 , 200 , 200 ) ;
> p.setVisible ( true ) ;
> }
> }