Swing编程中的闪烁按钮

package swing;

import java.awt.Color;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.io.FileInputStream;
import java.util.ArrayList;
import java.util.Random;

import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.Timer;

public class SuanSuoDong {
	public static void main(String[] args) {
		JFrame jf = new JFrame("闪闪闪"); // 创建窗口
		jf.setBounds(0, 0, 10000, 10000);//设置窗口的位置
		JPanel jp = new JPanel(); // 创建容器
		Random random = new Random();
		ArrayList ar = new ArrayList<>(); // 新建集合来存放按键

		for (int i = 0; i < 1000; i++) {
			JButton jb = new JButton("我爱你");
			Font font = new Font("黑体", Font.BOLD, 15);//设置字体
			jb.setFont(font);
			jb.setForeground(new Color(random.nextInt(256), random.nextInt(256), random.nextInt(256)));//通过Random来随机变换按钮的前景色
			jb.setBackground(new Color(random.nextInt(256), random.nextInt(256), random.nextInt(256)));
			随机变换按钮的背景颜色
			jb.setSize(60,60);
			jp.add(jb);
			ar.add(jb); // 集合存放按键
		}
		// 延迟的毫秒数和初始侦听器
		Timer timer = new Timer(10, new ActionListener() {

			/*
			 * 初始化侦听器
			 */
			public void actionPerformed(ActionEvent e) {
				for (JButton bt : ar) {
					bt.setForeground(new Color(random.nextInt(256), random.nextInt(256), random.nextInt(256)));
					bt.setBackground(new Color(random.nextInt(256), random.nextInt(256), random.nextInt(256)));

				}
			}
		});
		timer.start();  //使侦听器开始
		jf.add(jp);
		jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//设置窗口的关闭，点击右上角的X图标时，程序退出
		jf.setVisible(true);//设置窗口是否可见

	}
}