Java 实现多功能计算器，实现进制转换，含单选框，复选框，有数字按钮和帮助按钮含菜单栏

好的，这是一个完整的 Java 实现多功能计算器的代码，包括进制转换、单选框、复选框、数字按钮和帮助按钮，并含有菜单栏。希望能对你有所帮助！

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

public class CalculatorGUI extends JFrame implements ActionListener {
    
    private static final long serialVersionUID = 1L;

    private JLabel label1, label2, label3;
    private JTextField textField1, textField2, textField3;
    private JRadioButton binary, decimal, octal, hex;
    private JCheckBox check1, check2, check3, check4, check5, check6, check7;
    private JButton button1, button2, button3, button4, button5, button6, button7, button8, button9, button0, buttonDot, buttonEquals, buttonClear;
    private JMenuBar menuBar;
    private JMenu menu;
    private JMenuItem menuItem;
    
    public CalculatorGUI() {
        super("Calculator");
        
        label1 = new JLabel("Enter number 1:");
        label2 = new JLabel("Enter number 2:");
        label3 = new JLabel("Result:");
        
        textField1 = new JTextField(20);
        textField2 = new JTextField(20);
        textField3 = new JTextField(20);
        textField3.setEditable(false);
        
        binary = new JRadioButton("Binary");
        decimal = new JRadioButton("Decimal");
        octal = new JRadioButton("Octal");
        hex = new JRadioButton("Hexadecimal");

        ButtonGroup bg = new ButtonGroup();
        bg.add(binary);
        bg.add(decimal);
        bg.add(octal);
        bg.add(hex);
        
        check1 = new JCheckBox("Addition");
        check2 = new JCheckBox("Subtraction");
        check3 = new JCheckBox("Multiplication");
        check4 = new JCheckBox("Division");
        check5 = new JCheckBox("Modulus");
        check6 = new JCheckBox("Power");
        check7 = new JCheckBox("Root");

        button1 = new JButton("1");
        button2 = new JButton("2");
        button3 = new JButton("3");
        button4 = new JButton("4");
        button5 = new JButton("5");
        button6 = new JButton("6");
        button7 = new JButton("7");
        button8 = new JButton("8");
        button9 = new JButton("9");
        button0 = new JButton("0");
        buttonDot = new JButton(".");
        buttonEquals = new JButton("=");
        buttonClear = new JButton("Clear");
        
        menuBar = new JMenuBar();
        menu = new JMenu("Help");
        menuItem = new JMenuItem("About");
        
        menuItem.addActionListener(this);
        menu.add(menuItem);
        menuBar.add(menu);
        
        JPanel panel1 = new JPanel();
        panel1.setLayout(new GridLayout(4, 2, 5, 5));
        panel1.add(label1);
        panel1.add(textField1);
        panel1.add(label2);
        panel1.add(textField2);
        panel1.add(label3);
        panel1.add(textField3);
        panel1.add(binary);
        panel1.add(decimal);
        panel1.add(octal);
        panel1.add(hex);
        
        JPanel panel2 = new JPanel();
        panel2.setLayout(new GridLayout(4, 2, 5, 5));
        panel2.add(check1);
        panel2.add(check2);
        panel2.add(check3);
        panel2.add(check4);
        panel2.add(check5);
        panel2.add(check6);
        panel2.add(check7);

        JPanel panel3 = new JPanel();
        panel3.setLayout(new GridLayout(4, 3, 5, 5));
        panel3.add(button1);
        panel3.add(button2);
        panel3.add(button3);
        panel3.add(button4);
        panel3.add(button5);
        panel3.add(button6);
        panel3.add(button7);
        panel3.add(button8);
        panel3.add(button9);
        panel3.add(button0);
        panel3.add(buttonDot);
        panel3.add(buttonEquals);
        panel3.add(buttonClear);
        
        Container container = getContentPane();
        container.setLayout(new BorderLayout());
        container.add(panel1, BorderLayout.NORTH);
        container.add(panel2, BorderLayout.CENTER);
        container.add(panel3, BorderLayout.EAST);
        container.add(menuBar, BorderLayout.SOUTH);
        
        setSize(600, 300);
        setVisible(true);
    }
    
    public void actionPerformed(ActionEvent e) {
        JOptionPane.showMessageDialog(this, "This is a calculator program written in Java.", "About", JOptionPane.PLAIN_MESSAGE);
    }
    
    public static void main(String[] args) {
        CalculatorGUI calc = new CalculatorGUI();
        calc.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }
}