本例制作烟花，运行效果如图后所示。执行本例实例后，用鼠标点击浏览器中的面板，将出现五彩缤纷的烟花效果。此课程设计的知识点有：鼠标事件的监听，Graphics类和Thread类的应用。-In this case the production of fireworks, after running the effect shown in Figure. Examples of the implementation of this case, the browser with the mouse click in the panel, there will be the effect of colorful fireworks. Knowledge of the curriculum design points are: to monitor the mouse events, Graphics Class and Thread type applications.