import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Nupud{
  public static void main(String argumendid[]){
    AbstractButton[] b=new AbstractButton[5];
    b[1]=new JToggleButton("nr 1");
    b[2]=new JCheckBox("nr 2");
    b[3]=new JRadioButton("nr 3");
    b[4]=new JRadioButton("nr 4");
    ButtonGroup bg=new ButtonGroup();
    for(int i=2; i<5; i++){
     bg.add(b[i]);
    }

    JFrame f=new JFrame("Nupuraam");
    Container p=f.getContentPane();
    p.setLayout(new GridLayout());
    for(int i=1; i<5; i++) p.add(b[i]);
    f.pack();
    f.setVisible(true);    
  }
}