Java为图片增加“火焰”特效, private Image backImage,foreImage; //前景和背景Image对象    private Image image,fireImage; //Applet和绘制火焰的效果的Image对象    private Graphics graphics,fireGraphics; //Applet和绘制火焰的效果的Graphics对象    private Thread thread; //火焰效果的线程    private MediaTracker imageTracker; //装载图片    private int