Script Colores Java

import java.awt.*;

import java.applet.Applet;

import javax.swing.*;

import java.awt.event.*;

//<applet width="500" height="450" code="colores"></applet>

public class colores extends Applet

{

JCheckBox amar,azul,rojo,verd,negro;

ButtonGroup todos;

public void init()

{

grafica();

setBackground(Color.black);

}

public void grafica()

{

amar=new JCheckBox("amarillo");

amar.setBounds(30,30,80,20);

amar.setBackground(Color.black);

amar.addActionListener(new ActionListener ()

{

public void actionPerformed (ActionEvent w)

{

if(amar.isSelected());

{

setBackground(Color.yellow);

amar.setBackground(Color.yellow);

azul.setBackground(Color.yellow);

rojo.setBackground(Color.yellow);

verd.setBackground(Color.yellow);

negro.setBackground(Color.yellow);

}

}});

azul=new JCheckBox("azul");

azul.setBounds(30,50,50,20);

azul.addActionListener (new ActionListener ()

{

public void actionPerformed (ActionEvent w)

{

if(azul.isSelected());

{

setBackground(Color.blue);

amar.setBackground(Color.blue);

azul.setBackground(Color.blue);

rojo.setBackground(Color.blue);

verd.setBackground(Color.blue);

negro.setBackground(Color.blue);

}

}

});

rojo=new JCheckBox("rojo");

rojo.setBounds(30,70,50,20);

rojo.addActionListener (new ActionListener ()

{

public void actionPerformed (ActionEvent w)

{

...