// Example 5a - The if statement
import java.awt.*;
import java.applet.*;
import java.awt.event.*;

public class Example5a extends Applet
       implements ActionListener
{
  Button green = new Button("Green");
  Button red   = new Button("Red");

  public void init()
  {
    add(red);
    add(green);
    red.addActionListener(this);
    green.addActionListener(this);
  }

  public void actionPerformed(ActionEvent e)
  {
    Object pressed = e.getSource();

    if (pressed == red)
      setBackground(Color.red);

    if (pressed == green)
      setBackground(Color.green);
  }
}