怎样用Java编写一个简单的计算器

最新推荐文章于 2025-07-06 20:08:11 发布

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最新推荐文章于 2025-07-06 20:08:11 发布 · 1.2w 阅读

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我是自己纯手工用Java编写的计算器

//filename:JiShuan
import java.awt.Color;
import java.awt.EventQueue;
import java.awt.Image;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JTextField;
import java.awt.BorderLayout;
import javax.swing.JPanel;
import java.awt.GridLayout;
import javax.swing.SwingConstants;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.Toolkit;

public class JiShuan {

	private JFrame frame;
	private JTextField textShow;
	private JButton[] btn = {new JButton("1"),new JButton("2"),new JButton("3"),new JButton("+"),
							new JButton("4"),new JButton("5"),new JButton("6"),new JButton("-"),
							new JButton("7"),new JButton("8"),new JButton("9")