点鼠标出小球

最新推荐文章于 2025-07-23 16:17:44 发布

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最新推荐文章于 2025-07-23 16:17:44 发布 · 367 阅读

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#swing

这篇博客介绍如何使用Java Swing库创建一个交互式应用程序，当用户点击鼠标时，屏幕上会显示随机颜色的小球。代码示例展示了如何监听鼠标事件、生成小球并利用Timer进行动画效果。

import java.awt.Color;

import java.awt.Graphics;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.MouseAdapter;

import java.awt.event.MouseEvent;

import java.util.ArrayList;

import java.util.LinkedList;

import java.util.List;

import java.util.Random;

import javax.swing.JFrame;

import javax.swing.JPanel;

import javax.swing.Timer;

import javax.swing.WindowConstants;

public class AnimDemo extends JFrame

{

private static final Random rand = new Random();



private class Ball

{



    private static final int ballSize = 51;

    private static final int ballSpeed = 5;



    private double x;

    private double y;

    private double xVelocity;

    private double yVelocity;

    private Color color;



    public Ball(double ballX, double ballY)

    {

        this.x = ballX;

        this.y =