通过制作烟花的实例，运用了Java2中的界面技术和线程技术。通过界面技术，制作出烟花的形状。通过线程技术，控制烟花的播放场景和播放时间。-Instance through the production of fireworks, the use of the the Java2 interface and thread. Interface technology, making the shape of the fireworks. By threading technology, control the playback of the scene and playback time of fireworks.