//WAP to check JRadioButton in panel
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
class mypanel extends JPanel implements ActionListener
{
JRadioButton red,blue,green;
ButtonGroup color;
int a;
mypanel()
{
setLayout(null);
red=new JRadioButton("Rect");
red.addActionListener(this);
red.setBounds(50,50,100,30);
add(red);
blue=new JRadioButton("RoundRect");
blue.addActionListener(this);
blue.setBounds(50,100,100,30);
add(blue);
green=new JRadioButton("Circle");
green.addActionListener(this);
green.setBounds(50,150,100,30);
add(green);
color=new ButtonGroup();
color.add(red);
color.add(blue);
color.add(green);
}
public void actionPerformed(ActionEvent ae)
{
String str=ae.getActionCommand();
if(str=="Rect")
a=1;
if(str=="RoundRect")
a=2;
if(str=="Circle")
a=3;
repaint();
}
public void paintComponent(Graphics g)
{
super.paintComponent(g);
if(a==1)
{
g.drawRect(300,200,50,50);
}
if(a==2)
{
g.drawRoundRect(100,250,50,50,20,20);
}
if(a==3)
{
g.drawOval(200,100,50,100);
}
}
}
class myframe extends JFrame
{
Container c;
myframe()
{
c=getContentPane();
mypanel p=new mypanel();
c.add(p);
}
}
class rbpanel
{
public static void main(String args[])
{
myframe f=new myframe();
f.setTitle("RadioButton panel");
f.setSize(500,500);
f.setVisible(true);
}
}
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