标签+线程休眠 = 打地鼠

来源：互联网发布：iphone视频录制软件编辑：程序博客网时间：2024/05/22 15:28

再一次通过实践抓牢知识：原来标签还可以设置图片，从而作为“背景图片”，标签加上鼠标监听器可以轻松地实现被点击标签的消失，呵呵，标签君原来你这么的可爱！！

package homework;import java.awt.event.MouseAdapter;import java.awt.event.MouseEvent;import java.awt.event.MouseListener;import java.util.Random;import javax.swing.ImageIcon;import javax.swing.JFrame;import javax.swing.JLabel;public class daDiShu extends JFrame implements Runnable,MouseListener{ImageIcon backIcon = new ImageIcon(getClass().getResource("background.jpg"));  //背景图片ImageIcon shrewiIcon = new ImageIcon(getClass().getResource("mouse.png"));     //地鼠图片private JLabel[] shrew = new JLabel[7];                         //地鼠标签//shrew = new JLabel[7];public daDiShu() {// TODO Auto-generated constructor stubsetSize(backIcon.getIconWidth(), backIcon.getIconHeight()); //设置JFrame的宽度和高度setLayout(null);for(int i = 0; i < 6; i ++){shrew[i] = new JLabel();shrew[i].setSize(shrewiIcon.getIconWidth(), shrewiIcon.getIconHeight());shrew[i].addMouseListener(this    //为地鼠标签加上监听器//new MouseAdapter() {//另外形式的监听器//    //    @Override  //public void mouseClicked(MouseEvent e){//    //    Object t = e.getSource();//    if(t instanceof JLabel){//    JLabel t1 = (JLabel) t;//    t1.setIcon(null);//    }//    }//});getContentPane().add(shrew[i]);}shrew[0].setLocation(253, 300);    shrew[1].setLocation(333, 250);        shrew[2].setLocation(388, 296);        shrew[3].setLocation(362, 364);        shrew[4].setLocation(189, 353);        shrew[5].setLocation(240, 409);                JLabel back = new JLabel();    //设置背景标签back.setSize(backIcon.getIconWidth(), backIcon.getIconHeight());back.setIcon(backIcon);getContentPane().add(back);}public void run(){while(true){try{Thread.sleep(1000);    //线程休眠int ran = (int)(Math.random()*6); //随机决定那只地鼠出现if(shrew[ran].getIcon() == null){shrew[ran].setIcon(shrewiIcon);  }}catch (Exception e) {// TODO: handle exceptione.printStackTrace();}}}     public static void main(String[] args){            daDiShu a = new daDiShu();        a.setTitle("打地鼠");        a.setVisible(true);        a.setDefaultCloseOperation(EXIT_ON_CLOSE);        new Thread(a).start();     }@Overridepublic void mouseClicked(MouseEvent e) {// TODO Auto-generated method stubObject t = e.getSource();      if(t instanceof JLabel){    JLabel t1 = (JLabel) t;    t1.setIcon(null);    }}@Overridepublic void mouseEntered(MouseEvent e) {// TODO Auto-generated method stub}@Overridepublic void mouseExited(MouseEvent e) {// TODO Auto-generated method stub}@Overridepublic void mousePressed(MouseEvent e) {// TODO Auto-generated method stub}@Overridepublic void mouseReleased(MouseEvent e) {// TODO Auto-generated method stub}}

1 0