java之控制多幅图片

package xxj.thread0904;

import java.awt.Image;

import javax.swing.ImageIcon;
import javax.swing.JFrame;

public class Plane { // extends Thread {

    public Image image;
    public int y = 300, x = 100, width = 50, height = 50;
    //public JFrame frame;
    
    public Plane(int x,int y){//,JFrame frame) {
        this.x = x;
        this.y = y;
        //this.frame = frame;
        image = new ImageIcon(this.getClass().getResource("plane.jpg"))
                .getImage();
    }
    
    public void move(){
        y-=3;
        if(y<=40)
            y = 300;
    }
    
//
//    /**
//     * 重写Runnable接口的run方法
//     */
//    public void run() {
//        while (true) {
//            y -= 3;
//            if (y <= 50)
//                y = 300;
//            frame.repaint();
//            try {
//                Thread.sleep(100);
//            } catch (InterruptedException e) {
//                e.printStackTrace();
//            }
//        }
//    }

}

package xxj.thread0904;

import java.awt.Graphics;
import java.util.ArrayList;

import javax.swing.JFrame;

public class PlaneDemo extends JFrame {

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

    public PlaneDemo() {
        list = new ArrayList<Plane>();
        initUI();
    }

    private ArrayList<Plane> list;

    private void initUI() {
        this.setTitle("线程控制图片移动");
        this.setSize(600, 400);
        this.setLocationRelativeTo(null);
        this.setDefaultCloseOperation(3);
        this.setResizable(false);
        this.setVisible(true);

        PlaneListener pl = new PlaneListener(list,this);

        this.addMouseListener(pl);
        
        Thread t = new Thread(pl);
        t.start();

    }

    /**
     * 重写窗体的paint方法
     */
    public void paint(Graphics g) {
        super.paint(g);
        for (int i = 0; i < list.size(); i++) {
            Plane plane = list.get(i);
            g.drawImage(plane.image, plane.x, plane.y, plane.width,
                    plane.height, this);
        }
    }

}

package xxj.thread0904;

import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.ArrayList;

import javax.swing.JFrame;

public class PlaneListener extends MouseAdapter implements Runnable {

    private ArrayList<Plane> list;
    private JFrame frame;
    
    public PlaneListener(ArrayList<Plane> list,JFrame frame) {
        this.list = list;
        this.frame = frame;
    }

    public void mouseClicked(MouseEvent e) {
        int x = e.getX();
        int y = e.getY();
        Plane plane = new Plane(x,y);//,frame);
        list.add(plane);
//        plane.start();
    }
    
    public void run(){
        while(true){
            for(int i=0;i<list.size();i++){
                Plane plane = list.get(i);
                plane.move();
            }
            
            frame.repaint();
            
            try {
                Thread.sleep(100);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
    
}

这些代码，实现了简单的控制