/* File: Counter01.java

   Demonstrates how to open a window with Swing and count down
   from 10 in big giant letters. 
*/

import javax.swing.*;
import java.awt.Font ;

public class Counter01 {

  public static void main( String[] args ) {

    try {

       // Create a window with Swing
       //
       JFrame frame = new JFrame( "HelloJava" );
       JLabel label = new JLabel("Hello, Java!", JLabel.CENTER );
       label.setFont( new Font("Serif", Font.BOLD, 36) ) ;
       frame.getContentPane().add( label );
       frame.setSize( 300, 300 );
       frame.setVisible( true );
       
        // wait a sec ..
       Thread.sleep(1000) ;

       for(int i = 10 ; i >= 0 ; i--) {

           // change the label in the window
          label.setText( Integer.toString(i) ) ;
          Thread.sleep(500) ;

       }

       label.setText("Kaboom!") ;
       Thread.sleep(1000) ;

    } catch ( InterruptedException e ) {

       // we might get interrupted while we sleep
       System.out.println("Oh look! an exception!") ;

    }

    // Calling exit is necessary because the Swing window manager 
    // will keep running
    // System.exit(0) ;
  }

}