Java下降矩阵代码(如电影，续)

Question

好的，所以昨天我发布了一个关于创建一个模拟电影矩阵雨的 java jframe 的问题，我希望它就像这个 php 示例一样

http://mgccl.com/2007/03/30/simple-version-matrix-like-animated-dropping-character-effect-in-php

但是我想在两件事上得到一些帮助，

1st 一次有不止一列下降并且第 2 个字符相互拖尾

这是我目前的代码

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

@SuppressWarnings("serial")
public class MainFrame extends JFrame { 

private static final int FONT_SIZE = 20;
private static final int NUMBER_OF_REPEATS = 5;
private static final String TEXT = new String("0123456789/*-+/<>?;:[]~!@#$%^&*()+=abcdefghijklmnopqrstuvwxyz");
private static JPanel panel = new JPanel(null);
private static Random random = new Random();
private static JLabel label[] = new JLabel[NUMBER_OF_REPEATS];

public MainFrame() {        
    this.add(panel);
    panel.setBackground(Color.BLACK);
}

public void scroll() {
    for (int i = 0; i < NUMBER_OF_REPEATS; i++) {
        int character_initial = random.nextInt(TEXT.length());
        int random_x = random.nextInt(panel.getWidth() / FONT_SIZE) - 1;
        int colour = 255;
        label[i] = new JLabel(""+TEXT.charAt(character_initial));
        panel.add(label[i]);
        label[i].setFont(new Font("monospaced", Font.PLAIN, FONT_SIZE));
        label[i].setForeground(new Color(0, 255, 0));

        //change the text of the labels and their position
        for (int j = 0; j < (panel.getHeight() / FONT_SIZE)*2; j++) {
            int character = random.nextInt(TEXT.length());
            label[i].setBounds(random_x*FONT_SIZE, j*(FONT_SIZE / 2), FONT_SIZE, FONT_SIZE);
            label[i].setText(""+TEXT.charAt(character));

            //if foreground colour < 255 catch exception
            try {
                //when text reaches a certain colour remove it
                label[i].setForeground(new Color(0, 255-(j*5), 0));
                colour = 255-(j*5);
                if (colour <= 80) {
                    panel.remove(label[i]);
                    repaint();
                    colour = 255;
                    j = (panel.getHeight() / FONT_SIZE)*2;
                }
            } catch (Exception e) {}

            //pause between each character
            try {
                Thread.sleep(75);
            } catch (Exception e) {}
        }

        //create an infinite loop
        if (i == NUMBER_OF_REPEATS - 1) {
            i = 0;
        }
    }
}

public static void main(String[] args) {
    MainFrame frame = new MainFrame();
    frame.setVisible(true);
    frame.setSize(600, 400);
    frame.setResizable(false);
    frame.setMinimumSize(new Dimension(300, 200));
    frame.setLocationRelativeTo(null);
    frame.setTitle("Matrix Code Emulator by Ricco");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);   
    frame.scroll();
}
}

Answer 1

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

@SuppressWarnings("serial")
public class matrixRain extends JFrame { 

private static final int FONT_SIZE = 20;
private static final int NUMBER_OF_REPEATS = 5;
private static final String TEXT = new String("あ     た      
ア        カ                                  サ    ザ      ジ  
ズ       ゼ       ゾ           シ    ス      セ   ソ    キ   ク   ケ   コ   イ  ウ   エ    オ   ジャ な");
private static JPanel panel = new JPanel(null);
private static Random random = new Random();
private static JLabel label[] = new JLabel[NUMBER_OF_REPEATS];

public matrixRain() {        
   this.add(panel);
   panel.setBackground(Color.BLACK);
}
public void scroll() {
    //array to hold x coordinates for the labels
    int[] random_x = new int[NUMBER_OF_REPEATS];
    //create an infinite loop
    while (true) {
        //initialise all the labels to random characters
        for (int i = 0; i < NUMBER_OF_REPEATS; i++) {
          int character_initial = random.nextInt(TEXT.length());
          random_x[i] = random.nextInt(panel.getWidth() / FONT_SIZE) - 1;
          label[i] = new JLabel("" + TEXT.charAt(character_initial));
          panel.add(label[i]);
          label[i].setFont(new Font("monospaced", Font.PLAIN, FONT_SIZE));
        label[i].setForeground(new Color(0, 255, 0));
     }
    // change the text of the labels and their position
    for (int j = 0; j < (panel.getHeight() / FONT_SIZE) * 2; j++) {
        int character = random.nextInt(TEXT.length());
        //move each character
        for (int i = 0; i < NUMBER_OF_REPEATS; i++) {
            label[i].setBounds(random_x[i] * FONT_SIZE, j * (FONT_SIZE / 2), FONT_SIZE, FONT_SIZE);
            label[i].setText("" + TEXT.charAt(character));
            label[i].setForeground(new Color(0, 255 - (j * 5), 0));     
            for (int k = 0; k < NUMBER_OF_REPEATS; k++) {
                int character_initial = random.nextInt(TEXT.length());
                random_x[k] = random.nextInt(panel.getWidth() / FONT_SIZE) - 1;
                label[k] = new JLabel("" + TEXT.charAt(character_initial));
                panel.add(label[k]);
                label[k].setFont(new Font("monospaced", Font.PLAIN, FONT_SIZE));
                label[k].setForeground(new Color(0, 255, 0));
                Color colour = label[k].getForeground();
                if (colour.getGreen() <= 80) {
                    panel.remove(label[k]);
                    k = (panel.getHeight() / FONT_SIZE) * 2;
                }
            }
        }
        // pause between each character
        try {
            Thread.sleep(15);
        } catch (Exception e) {
        }
     }
  }
}
  public static void main(String[] args) {
      matrixRain frame = new matrixRain();
      frame.setVisible(true);
      frame.setSize(600, 400);
      frame.setResizable(false);
      frame.setMinimumSize(new Dimension(300, 200));
      frame.setLocationRelativeTo(null);
      frame.setTitle("Matrix Code Emulator by Ricco");
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);   
      frame.scroll();
  }
}