一个小乌龟动画，用到ＪＡＶＡ中的很多知识，有助于帮助大家很好的理解ＪＡＶＡ中平面动画的做法-a small turtle animation, used in many Java knowledge, we help the good understanding Java animation of Plane

一个简单的JAV小程序，描述龟兔赛跑，兔子的速度是乌龟的十倍,JAV small a simple procedure, described龟兔赛跑, rabbit ten times the speed of a turtle

it moves around and it ExtendedTurtle extends Turtle