public class lesson implements KeyListener
{
static lesson l = new lesson();
static Frame f;
static Label j;
public static void main (String args[])
{
f = new Frame("lesson");
j = new Label();
f.addKeyListener(l);
f.add(j);
f.pack();
f.setVisible(true);
f.addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
}
public void keyPressed(KeyEvent k)
{
if (k.getKeyCode()==KeyEvent.VK_DOWN)
{
j.setText("Down");
}
if (k.getKeyCode()==KeyEvent.VK_UP)
{
j.setText("UP");
}
}
public void keyReleased(KeyEvent k){}
public void keyTyped(KeyEvent k){}
}