Swing Components Java


            import java.awt.*;
import java.util.*;
import javax.swing.*;
import java.awt.event.*;
public class FocusTest extends JFrame implements KeyListener
 {
 JTextField jtf1,jtf2,jtf3;
 JPanel p;
 public FocusTest()
 {
 jtf1 = new JTextField(10);
 jtf2 = new JTextField(10);
 jtf3 = new JTextField(10);
 jtf1.addKeyListener(this);
 p = new JPanel();
 p.add(jtf1);
 p.add(jtf2);
 p.add(jtf3);
 getContentPane().add(p);
 }
 public static void main(String dd[])
 {
 FocusTest ft = new FocusTest();
 ft.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 ft.setSize(200,200);
 ft.setVisible(true);
 }
 public void keyPressed(KeyEvent ke)
 {
 if(ke.getKeyCode() == KeyEvent.VK_ENTER)
 {
 System.out.println("ll");
 jtf3.requestFocus();
 }
 }
 public void keyReleased(KeyEvent ke)
 {}
 public void keyTyped(KeyEvent ke)
 {}
}