用java代码写一个计算器静态界面设计

好的，以下是一个简单的 Java Swing 计算器的静态界面设计代码示例：

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

public class Calculator {
    public static void main(String[] args) {
        JFrame frame = new JFrame("Calculator");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(300, 400);

        JPanel panel = new JPanel(new GridBagLayout());
        GridBagConstraints c = new GridBagConstraints();
        c.fill = GridBagConstraints.HORIZONTAL;
        c.weightx = 0.5;
        c.gridx = 0;
        c.gridy = 0;
        c.gridwidth = 4;

        JTextField textField = new JTextField();
        textField.setEditable(false);
        panel.add(textField, c);

        c.gridwidth = 1;
        c.gridy = 1;
        panel.add(new JButton("7"), c);

        c.gridx = 1;
        panel.add(new JButton("8"), c);

        c.gridx = 2;
        panel.add(new JButton("9"), c);

        c.gridx = 3;
        panel.add(new JButton("/"), c);

        c.gridx = 0;
        c.gridy = 2;
        panel.add(new JButton("4"), c);

        c.gridx = 1;
        panel.add(new JButton("5"), c);

        c.gridx = 2;
        panel.add(new JButton("6"), c);

        c.gridx = 3;
        panel.add(new JButton("*"), c);

        c.gridx = 0;
        c.gridy = 3;
        panel.add(new JButton("1"), c);

        c.gridx = 1;
        panel.add(new JButton("2"), c);

        c.gridx = 2;
        panel.add(new JButton("3"), c);

        c.gridx = 3;
        panel.add(new JButton("-"), c);

        c.gridx = 0;
        c.gridy = 4;
        panel.add(new JButton("0"), c);

        c.gridx = 1;
        panel.add(new JButton("."), c);

        c.gridx = 2;
        panel.add(new JButton("="), c);

        c.gridx = 3;
        panel.add(new JButton("+"), c);

        frame.add(panel);
        frame.setVisible(true);
    }
}

这个代码示例使用了 Java Swing 的组件来构建计算器的界面，使用了 GridBagLayout 网格布局来排列按钮。您可以根据需要进行修改和扩展。