EventHandling in Applet

Example of EventHandling in applet

Here's a simple example of how event handling can be implemented in an applet

import java.awt.event.*;
import java.applet.*;
import java.awt.*;

public class MyApplet extends Applet implements ActionListener {
  Button b;
  public void init() {
    b = new Button("Click Me");
    b.addActionListener(this);
    add(b);
  }
  public void actionPerformed(ActionEvent ae) {
    b.setLabel("You clicked me");
  }
}

In this example, the MyApplet class extends the Applet class and implements the ActionListener interface. The init method creates a button, adds it to the applet, and sets itself as the action listener for the button. The actionPerformed method is called whenever the button is clicked and updates the label on the button to indicate that it has been clicked.

The basic principle is the same when handling events in an applet, which is to react to user interactions with the applet's GUI components. Other approaches include using anonymous inner classes or implementing various listener interfaces.