AWT frame class example in Java

//  Program to use Frame class.
import java.awt.*;
import java.awt.event.*;
public class FrameTest extends Frame implements ActionListener
{
TextField tf;
Button b;
String s = "";
   
public  FrameTest()
{
 tf = new TextField( 10 );
 b = new Button( "Show" );
 
 add( "North", tf );
 add( "South", b );
 
 b.addActionListener( this );
 setSize( 300, 200 );
 setVisible( true );
 
 addWindowListener( new WindowAdapter()
 {
  public void windowClosing( WindowEvent e )
      { 
   System.exit( 0 );
  }
    } );
   }
   public void actionPerformed( ActionEvent ae )
   {
 s = tf.getText();
 repaint();
   }
   public void paint( Graphics g )
{
 g.drawString( s, 100, 100 );
}
public static void main( String[ ] args )
{
 FrameTest f = new FrameTest();
}
}