范例1-borderlayout
import java.awt.*;

import java.awt.event.*;

public class borderlayout

{

public static void main(String args[])

{

   Frame myf=new Frame("borderlayout test");

   Button north=new Button("北");

   Button south=new Button("南");

   Button west =new Button("西");

   Button east=new Button("东");

   Button center=new Button("中");

   myf.setSize(400,400);

   myf.addWindowListener(new WindowAdapter()

   {

    public void windowClosing(WindowEvent e)

    {

     System.exit(0);
    
    }
   });

   myf.add(north,BorderLayout.NORTH);

   myf.add(south,BorderLayout.SOUTH);

   myf.add(west,BorderLayout.WEST);

   myf.add(east,BorderLayout.EAST);

   myf.add(center,BorderLayout.CENTER);

   myf.setVisible(true);
  
}
}