import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class frameBorderlayout extends JFrame{
    private JPanel jpanel1;
    private BorderLayout b1;
    private JButton JButton1=new JButton("中間位置");
    private JButton JButton2=new JButton("南邊位置");
    private JButton JButton3=new JButton("西邊位置");
    private JButton JButton4=new JButton("東邊位置");
    private JButton JButton5=new JButton("北邊位置");
    
    public frameBorderlayout(){
        super("frameGridLayout");
        setSize(300,240);
        b1=new BorderLayout();
         jpanel1=new JPanel();
        jpanel1.setLayout(b1);
        jpanel1.add(JButton1,BorderLayout.CENTER);
        jpanel1.add(JButton2,BorderLayout.SOUTH);
        jpanel1.add(JButton3,BorderLayout.WEST);
        jpanel1.add(JButton4,BorderLayout.EAST);
        jpanel1.add(JButton5,BorderLayout.NORTH);
        
        this.setContentPane(jpanel1);
        }
    public static void main(String args[]){
        frameBorderlayout fb1=new frameBorderlayout();
        fb1.show();
        fb1.addWindowListener(new WindowAdapter(){
        public void windowClosing(WindowEvent e){
            System.exit(0);
            }
        });
        }
    }