www.javalearing.blogspot.com importjava.awt.*;
import java.awt.event.*;
import java.applet.*;
public class fillcolor extends Applet implement Item Listener
{
checkbox red,yellow,black,blue,orange;
CheckboxGroup cbg;
String msg;
String s1="red";
String s2="yellow";
String s3="black";
String s4="orange";
public void init()
{
cbg = new CheckboxGroup();
red = new Chechbox("red",cbg,true);
yellow= new Checkbox("yellow",cbg,false);
black = new Checkbox("black",cbg,false);
blue = new Checkbox("blue",cbg,false);
orange = new checkbox("orange".cbg.false);
add(red);
add(yellow);
add(black);
add(blue);
add(orange);
red.addItemListener(this);
yellow.addItemListener(this);
black.addItemListener(this);
blue.addItemListener(this);
orange.addItemListener(this);
}
publice void itemStartechanged(ItemEvent ie)
{
repaint();
}
publice void paint (Graphics g)
{
msg = cbg.getSelectedCheckbox().getLabel();
if(msg.compareTo(s1)==0)
{
setBackground(Color.red);
}
else if (msg.compareTo(s2)==0)
{
setBackground(Color.yellow);
}
else if(msg.compareTo(s3)==0)
{
setBackground(color.black);
}
else if (msg.compareTo(s4)==o)
{
setBackground(Color.blue);
}
else
{
set Background(Color.orange);
}
}
}
Java 2: The Complete Reference, Fifth Edition
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