写一个Java gui计算器实现两个数之间的加减乘除，用户输入格式不正确时可以给出tishixinxi

好的，以下是一个简单的Java GUI计算器实现：

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

public class CalculatorGUI implements ActionListener {

    private JFrame frame;
    private JPanel panel;
    private JTextField numField1, numField2, resultField;
    private JButton addButton, subtractButton, multiplyButton, divideButton;

    public CalculatorGUI() {
        // 创建 JFrame 和 JPanel
        frame = new JFrame("Calculator");
        panel = new JPanel(new GridLayout(4, 2));

        // 创建文本框和按钮
        numField1 = new JTextField();
        numField2 = new JTextField();
        resultField = new JTextField();
        resultField.setEditable(false);

        addButton = new JButton("+");
        subtractButton = new JButton("-");
        multiplyButton = new JButton("*");
        divideButton = new JButton("/");

        // 将文本框和按钮添加到面板中
        panel.add(new JLabel("Number 1:"));
        panel.add(numField1);
        panel.add(new JLabel("Number 2:"));
        panel.add(numField2);
        panel.add(new JLabel("Result:"));
        panel.add(resultField);
        panel.add(addButton);
        panel.add(subtractButton);
        panel.add(multiplyButton);
        panel.add(divideButton);

        // 添加监听器
        addButton.addActionListener(this);
        subtractButton.addActionListener(this);
        multiplyButton.addActionListener(this);
        divideButton.addActionListener(this);

        // 设置 JFrame 属性并显示窗口
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.getContentPane().add(panel);
        frame.pack();
        frame.setVisible(true);
    }

    // 实现 ActionListener 接口中的 actionPerformed 方法
    public void actionPerformed(ActionEvent e) {
        // 获取输入的两个数
        double num1, num2;
        try {
            num1 = Double.parseDouble(numField1.getText());
            num2 = Double.parseDouble(numField2.getText());
        } catch (NumberFormatException ex) {
            JOptionPane.showMessageDialog(frame, "请输入正确的数字！");
            return;
        }

        // 根据按钮的标签执行相应的操作
        String operation = e.getActionCommand();
        double result = 0;
        switch (operation) {
            case "+":
                result = num1 + num2;
                break;
            case "-":
                result = num1 - num2;
                break;
            case "*":
                result = num1 * num2;
                break;
            case "/":
                if (num2 == 0) {
                    JOptionPane.showMessageDialog(frame, "除数不能为零！");
                    return;
                }
                result = num1 / num2;
                break;
        }

        // 显示结果
        resultField.setText(String.valueOf(result));
    }

    public static void main(String[] args) {
        CalculatorGUI calculator = new CalculatorGUI();
    }
}

这个计算器可以实现两个数之间的加减乘除运算，并且当用户输入不正确时会弹出提示框。