shadowPJ
use o ButtonGroup porque com ele voce só poderá selecionar apenas um radiButton!!!1 veja o exemplo…
import javax.swing.<em>;
import java.awt.</em>;
public class a extends JFrame
{
JTextField t1=new JTextField();
JRadioButton b1=new JRadioButton(“oi”);
JRadioButton b2=new JRadioButton(“oi2”);
JRadioButton b3=new JRadioButton(“oi3”);
ButtonGroup b=new ButtonGroup();
public a()
{
Container c=getContentPane();
c.setLayout(null);
setSize(400,500);
t1.setBounds(50,50,200,50);
b.add(b1);
b.add(b2);
b.add(b3);
b1.setBounds(60,70,100,20);
b2.setBounds(70,90,200,20);
b3.setBounds(80,110,200,20);
c.add(b1);
c.add(b2);
c.add(b3);
c.add(t1);
show();
}
public static void main(String args[])
{
a p=new a();
}
}