import javax.swing.*;
import java.awt.*;
class BorderLayoutPosition extends JFrame
{
BorderLayoutPosition()
{
setTitle("这个窗体使用边界布局管理器");
Container c = getContentPane();
setLayout(new BorderLayout());
JButton centerBtn = new JButton("中"),northBtn = new JButton("北"),westBtn = new JButton("南"),easthBtn = new JButton("东"),southBtn = new JButton("西");
c.add(centerBtn,BorderLayout.CENTER);
c.add(northBtn,BorderLayout.NORTH);
c.add(southBtn,BorderLayout.SOUTH);
c.add(westBtn,BorderLayout.WEST);
c.add(easthBtn,BorderLayout.EAST);
setSize(350,200);
setVisible(true);
setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
}
public static void main(String args[])
{
new BorderLayoutPosition();
}
}