JAVA小球自由落体运动钢性碰撞Java认证考试
文章作者 100test 发表时间 2010:01:01 15:52:53
来源 100Test.Com百考试题网
import java.awt.BorderLayout.
import java.awt.Color.
import java.awt.Component.
import java.awt.Container.
import java.awt.Graphics.
import java.awt.Graphics2D.
import java.awt.event.ActionEvent.
import java.awt.event.ActionListener.
import java.awt.image.BufferedImage.
import javax.swing.JFrame.
import javax.swing.Timer.
public class BallJump /*extends JFrame*/ extends JFrame implements ActionListener{
private static final int SIZER = 20.
private static