Java swing 实现图片闪烁

Java swing实现一闪一闪的效果，其实思路只是建立一个线程，在线程中不断地切换你想要显示的图片以此达到闪烁的效果。以下附上主要的代码。

class TwinkledThread extends Thread{

public boolean twinkledFlag=false;
private long currentTimeMillis;

public TwinkledThread(long currentTimeMillis) {
this.currentTimeMillis=currentTimeMillis;
        }

        @Override
public void run() {

while(!twinkledFlag){
try {

                            markstationImg= markstation;
                            Thread.sleep(100);
// 闪动消息的提示图片
                            markstationImg=null;
                            Thread.sleep(100);

//此处控制闪烁的时长 
if(System.currentTimeMillis()-currentTimeMillis>2000){
                                twinkledFlag=true;
                 }
                        } catch (InterruptedException e) {
// TODO Auto-generated catch block
                            e.printStackTrace();
                        }
            }
        }
    }

class MyLabel extends JLabel{
/**
 * 
 */
private static final long serialVersionUID = 1L;

@Override
        public void paint(Graphics g) {
super.paint(g);
        Graphics2D g2=(Graphics2D) g;
            g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON);

if(twinkledBs!=null){
if(markstationImg!=null){
                    g2.drawImage(markstationImg.getImage(),
                    twinkledBs.getX(),twinkledBs.getY(), this
                    );
                }
            }
          }      
    }