java代码====实现按钮点击改变颜色=======

总结：

package com.a.b;

import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.*;

public class Shi extends JFrame implements ActionListener {
	// 实现的点击按钮

	JButton jb, jb2;

	public Shi() {
		JFrame frm = new JFrame();
		jb = new JButton("确定吗");
		jb2 = new JButton("是的吗");
		jb2.setBackground(Color.yellow);//
		jb.setBackground(Color.red);
		JPanel jp = new JPanel();
		jp.add(jb);
		jp.add(jb2);
		this.add(jp);
		this.setVisible(true);
		this.setDefaultCloseOperation(3);
		this.setSize(500, 500);

		// 需要对按钮就行监听
		jb.addActionListener(this);// 这里需要指的是当前类

	}

	public void actionPerformed(ActionEvent e) {

		if (e.getSource() == jb) {
			jb.setBackground(Color.blue);// 蓝色
		} else if (e.getSource() == jb2) {
			jb2.setBackground(Color.red);//
		}
	}

	public static void main(String[] args) {
		new Shi();
	}
}