AWTHomework2a

package awtHomework2a;
import java.awt.*;
import java.awt.event.*;

public class AWTHomework2a extends Frame {

    private Panel buttonsWest = new Panel( new GridLayout(3,1));
    private Panel buttonsCenter = new Panel( new GridLayout(2,2));
    private Panel buttonsSouth = new Panel();

    public AWTHomework2a() {
        for(int i=0; i<3; i++){
            buttonsWest.add(new Button("Button1"+(i+1)));
            buttonsCenter.add(new Button("Button2"+(i+1)));
            buttonsSouth.add(new Button("Button3"+(i+1)));
        }
        buttonsCenter.add(new Button("Button24"));
        this.add(buttonsWest, BorderLayout.WEST);
        this.add(buttonsCenter, BorderLayout.CENTER);
        this.add(buttonsSouth, BorderLayout.SOUTH);
        this.setTitle("LayoutManagersDemo");
        this.setSize(250,150);
        this.setVisible(true);
        this.addWindowListener( new WindowClosing());
    }

    public static void main(String[] args){
        new AWTHomework2a();
    }

    class WindowClosing extends WindowAdapter {
        public void windowClosing(WindowEvent e){
            System.exit(0);
        }
    }
}