j2se做的绘图板,有铅笔,直线,矩形,圆等图形可画.并且可以选区,复制粘贴,调整线条粗细.打开保存为jpg文件-j2se do graphics board, a pencil, straight, rectangular, round and other graphics can be drawn. constituencies and can, copy and paste, adjust the line thickness. open the save as jpg file