小编use*_*392的帖子

我修复了代码并更新了,但现在我不知道在哪里放置构造函数:

private JPanel panel;
public RollButton(JPanel panel){
    this.panel = panel;
}

我查看了一些放置构造函数的示例,看起来它放在我的RollButton类周围,但我试图将它放在多个地方并且在多个地方,但我似乎无法做到正确.

码:

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

public class DiceRollGUI {

    public static JLabel label;
    public static JFrame frame;
    public static JPanel panel;
    private static JButton button;
    private static JButton buttonRollDie;
    private static JLabel diceRoll;

    public static void main (String[] args) {
        JFrame frame = new JFrame("Dice Roll GUI");
        JPanel contentPanel = new JPanel(new GridLayout(0,2,5,10));
        button = new JButton("Roll");;

        frame.setVisible(true);
        frame.setResizable(false);
        frame.setSize(750, …