进行一些简单的图片处理功能，用java编写，简单好用。-Some simple image processing functions, using java to prepare, simple and easy to use.

Descr iption: This a simple Painter program using JAVA language. The program uses 4 classes to build the entire structure. Please compile using the JAVA SDK, and run the Painter.java as the main program. Program Ability: -Draw Line, FreeHand, Oval,