AWT - catching click button event

Presented below is an example for catching button click event in AWT.

Code:

---

public class TestEvent extends Applet implements ActionListener {
  Button b2, b1;
  TextField t1;

  public void init() {
    setLayout(new FlowLayout());
    t1 = new TextField(30);
    b1 = new Button("Output");
    add(b1); add(t1);
    b2 = new Button("Fire event 1st button");
    add(b2);

    b1.addActionListener(this);
    b2.addActionListener(this);

    }

  public void actionPerformed(ActionEvent e) {
    if (e.getSource() == b1) {
      t1.setText("1st button clicked");
      }
    if (e.getSource() == b2) {
      //  from the b2 button, we creating an event to trigger a click
      //  on the b1 button
      ActionEvent ae =
          new ActionEvent((Object)b1, ActionEvent.ACTION_PERFORMED, "");
      Toolkit.getDefaultToolkit().getSystemEventQueue().postEvent(ae);
      // b1.dispatchEvent(ae);  can be used too.
      }
    }
}

---