这是我用java编写的一个界面程序，运行该程序，会模拟小球的弹跳情况显示，用鼠标点击，小球会出现在点击的地方，继续弹跳。-This is because I use a prepared java interface, the running of the procedures, will be simulated small bounce of the ball, with a mouse click, the ball will appear click on the premises to continue bouncing.