java代码实现炫酷壁纸效果

版权声明：本文为博主原创文章，若需要引用或转载，请注明原文链接。 https://blog.csdn.net/qq_39209492/article/details/84997290

前言

  今天无意之间翻出了大一时候学JAVA GUI Swing 时候的java代码，发现了一个有趣的代码，就是用java代码跑出一个炫酷的壁纸效果的动图，跑了一下，感慨颇多，当时就是因为做这个，查了好久的资料，最终将其写出来，当时还将这个导包出来给同学看下，小小的装了下X。^_

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重点

  今天将这个源码分享出来和大家一起共享,为了自己思考，我将所有注释都删了

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package Screen;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.image.MemoryImageSource;
import java.util.Random;
import javax.swing.JDialog;
import javax.swing.JPanel;
import javax.swing.Timer;
public class hikeSCreen extends JDialog implements ActionListener {
private static final long serialVersionUID = 1L;
private Random random = new Random();
private Dimension screenSize;
private JPanel graphicsPanel;
private final static int gap = 20;
private int[] posArr;
private int lines;
private int columns;
public static void main(String[] args) {new hikeSCreen();
}

public hikeSCreen() {
    initComponents();
}
private void initComponents() {
    setLayout(new BorderLayout());
    graphicsPanel = new GraphicsPanel();
    add(graphicsPanel, BorderLayout.CENTER);
    Toolkit defaultToolkit = Toolkit.getDefaultToolkit();
    Image image = defaultToolkit.createImage(new MemoryImageSource(0, 0,
            null, 0, 0));
    Cursor invisibleCursor = defaultToolkit.createCustomCursor(image,
            new Point(0, 0), "cursor");
    setCursor(invisibleCursor);
    KeyPressListener keyPressListener = new KeyPressListener();
    this.addKeyListener(keyPressListener);
    this.setAlwaysOnTop(true);
    this.setUndecorated(true);
    this.getGraphicsConfiguration().getDevice().setFullScreenWindow(this);
    this.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
    setVisible(true);
    screenSize = Toolkit.getDefaultToolkit().getScreenSize();
    lines = screenSize.height / gap;
    columns = screenSize.width / gap;
    posArr = new int[columns + 1];
    random = new Random();
    for (int i = 0; i < posArr.length; i++) {
        posArr[i] = random.nextInt(lines);
        new Timer(100, this).start();
    }
}
private char getChr() {
    return (char)  (random.nextInt(94) + 33);
}
public void actionPerformed(ActionEvent e) {
    graphicsPanel. repaint();
}
@SuppressWarnings("serial")
private class GraphicsPanel extends JPanel {
    public void paint(Graphics g) {
        Graphics2D g2d = (Graphics2D) g;
        g2d. setFont (getFont (). deriveFont (Font. BOLD));
        g2d. setColor(Color. BLACK);
        g2d. fillRect (0, 0, screenSize. width, screenSize. height);
        int currentColumn = 0;
        for (int x = 0; x < screenSize.width; x += gap) {
            int endPos = posArr[currentColumn];
            g2d. setColor(Color. GREEN);
            g2d.drawString(String.valueOf(getChr()), x, endPos * gap);
            int cg = 0;
            int length = 25;
            for (int j = endPos -length; j < endPos; j++) {
                cg += 255/(length + 1);
                if (cg > 255) {
                    cg = 255;
                }
                g2d.setColor(new Color(0, cg, 0));
                g2d.drawString(String.valueOf(getChr()), x, j * gap);
            }
            posArr[currentColumn] += random.nextInt(5);
            if ((posArr[currentColumn] -5)* gap > getHeight()) {
                posArr[currentColumn] = random.nextInt(lines);
            }
            currentColumn++;
        }
    }
}
private class KeyPressListener extends KeyAdapter {
    public void keyPressed(KeyEvent e) {
        if (e.getKeyCode() ==KeyEvent.VK_ESCAPE) {
            System.exit(0);
        }
    }
}

}

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补充

   这是效果图 ，截图下来是静态的，但是这是动态的，速度方向也可以自己调整。我将导出来的jar包也分享出来，大家可以从我的下载那里下载先看下效果，免费的.

总结

  现在很少发文，发的大部分都是以前的一些经验积累，现在全身心都投入在考研中，大部分身心也没有放在各种新框架中，而是转向算法，如果有想学算法的话强烈推荐leetcode这个网站 https://leetcode-cn.com/,不忘初心，砥砺前行！