用Java 实现几何图形的生成，如何来在界面上画一些基本的几何图形，本程序是一示例！-using Java geometry generation, how to interface painting in some of the basic geometric shapes, the procedure is an example!

小型的图形绘制软件，用java实现，可选择不同颜色和形状等-Rendering small software, java to achieve with the option of different colors and shapes, such as