相关疑难解决方法(0)

我正在使用java swing工作计算器,我希望能够通过键盘输入数字和操作.我似乎无法让它工作.

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

public class Calculator extends JFrame implements ActionListener  {

    JPanel[] row = new JPanel[6];
    JButton[] button = new JButton[23];
    JMenuBar menubar = new JMenuBar();
    JMenu file = new JMenu("File");
    JMenuItem clear = new JMenuItem("Clear");
    JMenuItem exit = new JMenuItem("Exit");


    String[] buttonString = {"7", "8", "9", "+",
            "4", "5", "6", "-",
            "1", "2", "3", "*",
            ".", "/", "C", "?",
            "+/-", "=", "0", "mod", "x^2", "x^y", "?"};
    int[] dimW = {300,45,100,90};
    int[] dimH = {35, …