总结:最难的就是当我们需要点击按钮时去实现某个功能-----------因为那个我没有理解透,是涉及整个程序的
package com.a.b; import javax.swing.*; import java.awt.event.*; class SB extends JFrame implements ActionListener { JButton jb; public SB() { jb = new JButton("你你你"); jb.addActionListener(this);// 注册监听 this.setVisible(true); this.add(jb); this.setBounds(333, 333, 500, 500); this.setDefaultCloseOperation(3); } public void actionPerformed(ActionEvent a) { if (a.getSource() == jb) { System.out.println("你好"); } } } public class Shi { public static void main(String[] args) { new SB(); } }