package 边界布局BorderLayout



import java.awt.BorderLayout

import java.awt.event.WindowAdapter

import java.awt.event.WindowEvent



import javax.swing.JButton

import javax.swing.JFrame



public class TestBorderLayout extends JFrame{



　　

　　public static void main(String[] args) {

　　　　new TestBorderLayout()

　　}-package border layout BorderLayout　import java.awt.BorderLayout　import java.awt.event.WindowAdapter　import java.awt.event.WindowEvent　import javax.swing.JButton　import javax.swing.JFrame　public class TestBorderLayout extends JFrame { public static void main (String [] args) {new TestBorderLayout () }