JAVA学习--BorderLayout

import java.awt.BorderLayout;import javax.swing.JButton;import javax.swing.JFrame;public class ShowBorderLayout extends JFrame {public ShowBorderLayout(){setLayout(new BorderLayout(5, 5));add(new JButton("East"), BorderLayout.EAST);add(new JButton("South"), BorderLayout.SOUTH);add(new JButton("West"), BorderLayout.WEST);add(new JButton("North"), BorderLayout.NORTH);add(new JButton("Center"), BorderLayout.CENTER);}/** * @param args */public static void main(String[] args) {// TODO Auto-generated method stubShowBorderLayout frame = new ShowBorderLayout();frame.setTitle("ShowBorderLayout");frame.setSize(300, 200);frame.setLocationRelativeTo(null);frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.setVisible(true);}}