使用来自另一个变量的随机值来着色特定的JLabel图块

Question

我开发了基诺游戏，我对如何从随机变量绘制特定JLabel图块（基本上是JLabel数组的特定位置）感到困惑。我认为最好的想法是将这些标签和我的prob变量修改为ArrayLists，但它不起作用。我想要实现的主要和最后的事情是绘制数组的特定位置＆＃34; a＆＃34;如果用户按下rollButton，则从prob变量中获取价格。 我已经使用了几种方法，我认为我非常接近，但我希望得到你的帮助。

在这里你可以找到我的代码：

import java.util.Random;
public class Game {

    private final int RANDOMNUMBER = 80;
    int prob;
    String res;
    StringBuilder sb = new StringBuilder();


    public void rNumbers() {
        for (int x = 0; x <= 12; x++) {
            Random d = new Random();
            prob = d.nextInt(RANDOMNUMBER) + 0;
            sb.append("-");
            sb.append(prob);
        }
    }

    public void delete(StringBuilder sb2, String s) {
        int start = sb2.indexOf(s);
        if(start < 0)
            return;
        sb2.delete(start, start + s.length());
    }
}

和Gui班

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;

import javax.swing.*;

public class GuiKino extends JFrame implements ActionListener {

    private JPanel mainPanel;
    private JPanel contentPanel;
    private JPanel otherPanel;

    private Color color;

    private JTextField text;
    private JTextField input;

    private JButton rollButton;
    private JButton clearButton;

    Game t = new Game();

    private JLabel[] a = new JLabel[80];

    GridLayout gridLayout = new GridLayout();

    StringBuilder user = new StringBuilder();

    public GuiKino() {

        this.setTitle("Keno");

        // Create panels
        mainPanel = new JPanel();
        contentPanel = new JPanel();
        otherPanel = new JPanel();

        this.contentPanel = (JPanel) getContentPane();

        contentPanel.add(otherPanel, BorderLayout.SOUTH);
        contentPanel.add(mainPanel, BorderLayout.CENTER);

        mainPanel.setLayout(new GridLayout(10, 10));
        otherPanel.setLayout(new GridLayout(2, 4));

        text = new JTextField("", 20);
        input = new JTextField("", 20);

        rollButton = new JButton("Draw");
        rollButton.addActionListener(this);

        clearButton = new JButton("Clear");
        clearButton.addActionListener(this);

        otherPanel.add(text);
        otherPanel.add(input);
        otherPanel.add(rollButton);
        otherPanel.add(clearButton);

        for (int j = 0; j < a.length; j++) {
            a[j] = new JLabel("");
            a[j].setBorder(BorderFactory.createLineBorder(Color.BLACK));
        }

        // cell numbers
        for (int l = 0; l < a.length; l++) {
            a[l].setText("" + l);
        }

        for (int i = 0; i < a.length; i++) {
            mainPanel.add(a[i]);
        }

    }

    ArrayList<Integer> places = new ArrayList<Integer>(Arrays.asList(t.prob));
    ArrayList<JLabel> label = new ArrayList<JLabel>(Arrays.asList(a));

    public void colored() {
        if(!Collections.disjoint(label, places)){
            //change the color!
            color=Color.RED;
        }
    }

    @Override
    public void actionPerformed(ActionEvent e) {

        if (e.getSource() == rollButton) {
            t.rNumbers();
            text.setText(t.sb.toString());
            colored();
        }

        if (e.getSource() == clearButton) {
            text.setText("");
            t.delete(t.sb, t.sb.toString());
        }
    }
}