ballanim.java

用Java实现的跳动的小球

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package ballanim;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Container;
import javax.swing.JFrame;

/**
 *
 * @author Administrator
 */
public class BallAnim extends JFrame{
 Container con;
 Sport ss;
 public BallAnim(){
     super("滚动的小球");  
     this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
     ss = new Sport();
     con = this.getContentPane();
     con.setLayout(new BorderLayout());
     con.setBackground(Color.WHITE);
     con.add(ss,BorderLayout.CENTER);
     this.setSize(300, 300);
     this.setLocationRelativeTo(null);
     this.setVisible(true);
 }
    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        BallAnim app = new BallAnim();
    }

}