H_u_n_t_3_r's questions

因此，我有一个代码，可以绘制像电影中那样的矩阵，并且我指出了数字以高百分比掉落的可能性。我的问题是，我希望所有的符号都不是静态的，而是闪烁的。也就是说，当符号达到绿色的上限（255）时，它开始变暗（最多 50）。我还希望它在大约10秒内发生（单程）。

import javax.swing.*;
import java.awt.*;
import java.util.Random;

import static java.awt.FlowLayout.CENTER;
import static java.lang.Math.floorDiv;

public class BigProject extends JFrame {
    public static void main(String[] args) {

        var random = new Random();

        var f = new JFrame();
        f.getContentPane().setBackground(Color.BLACK);
        f.setDefaultCloseOperation(EXIT_ON_CLOSE);
        f.setUndecorated(true);
        f.getContentPane().setLayout(new FlowLayout(CENTER, 0, 0));

        var screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        var labelSize = new Dimension(100, 60);
        var rw = screenSize.getWidth() / (int) labelSize.getWidth();
        var rh = screenSize.getHeight() / (int) labelSize.getHeight();
        var repeat = rw * rh;

        var digit = new String[]{
                "0", "1", "2", "3", "4", "5", "6", "7", "8", "9",
        };
        var letter = new String[]{
                "a", "b", "c", "d", "f", "g", "h", "i", "j", "k",
                "l", "m", "n", "o", "q", "r", "s", "t", "u", "y",
                "x", "z"
        };

        for (var i = 0; i < repeat; i++) {
            int a = random.nextInt(25);
            if (a < 5) {
                var number = random.nextInt(letter.length);
                var label = getLabelG(labelSize, random, letter[number]);
                f.add(label);
            }
            if (a >= 5) {
                var number = random.nextInt(digit.length);
                var label = getLabelG(labelSize, random, digit[number]);
                f.add(label);
            }
            f.setExtendedState(Frame.MAXIMIZED_BOTH);
        }
        f.setVisible(true);


    }
    private static JLabel getLabelG(Dimension labelSize, Random random, String letter) {
        var label = new JLabel(letter, SwingConstants.CENTER);
        label.setPreferredSize(labelSize);
        label.setFont(label.getFont().deriveFont(48.0F));
        label.setForeground(new Color(0, 50 + random.nextInt(206), 0));
        return label;
    }
}

如何让数字看起来像电影《黑客帝国》中的数字一样，带有一定的缩进，最好是绿色。所以我做了一个循环，说我想重复这个动作几百次，但i我只输出一部分数字，而不是指定的变量数。

import javax.swing.*;
import java.awt.*;
import java.util.Random;

public class BigProject extends JFrame {
    public static void main(String[] args) throws Exception {

        int R = 0;
        int G = 255;
        int B = 0;
        int repeat = 250;

        JFrame j = new JFrame();
        Robot robot = new Robot();
        Random random = new Random();

        j.getContentPane().setBackground(Color.BLACK);
        j.setExtendedState(Frame.MAXIMIZED_BOTH);
        j.setDefaultCloseOperation(EXIT_ON_CLOSE);
        j.setTitle("Matrix");
        j.setLayout(new FlowLayout());
        j.setVisible(true);

        FlowLayout setting = new FlowLayout(0, 0, 0);
        j.getContentPane().setLayout(setting);

        for (int Repeat = 0;Repeat != repeat; Repeat++) {
            int i = random.nextInt(10);
            JLabel label = new JLabel(String.valueOf(i), JLabel.CENTER);
            label.setPreferredSize(new Dimension(100, 60));
            label.setFont(label.getFont().deriveFont(45.0F));
            label.setVisible(true);
            j.add(label);
        }
    }
}

结果如下：