java怎样写一个简单的计算器
import java.util.Scanner;public class Calculator { public static void main(String[] args) { Scanner scanner = new Scanner(System.in);System.out.println("Enter first number:");double num1 = scanner.nextDouble();System.out.println("Enter second number:");double num2 = scanner.nex...
用JAVA编写一个简单的计算器,要求如下
然后 通过输入 显示结果，比如说：以下是上图计算器的代码:package Computer;import java.awt.BorderLayout;import java.awt.Color;import java.awt.Container;import java.awt.Font;import java.awt.GridLayout;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.util.St...
java编一个计算器的代码
import java.awt.*;import java.awt.event.*;import javax.swing.*;import java.util.*;public class Counter { public static void main(String[] args) { CounterFrame frame = new CounterFrame();frame.show();} } class CounterFrame extends JFrame { public CounterFrame() { JMenuBar me...
JAVA 编写计算器 要代码最简单的
import java.awt.Font;import java.awt.GridLayout;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.text.NumberFormat;import java.util.ArrayList;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JPanel;import javax.swing.JTextField;\/**简易计算器,...
关于用java程序编写一个简单的计算器
private int op = 0,add = 1,sub = 2,mul = 3,div = 4;private double stringToDouble(String x){ double y = Double.parseDouble(x);return y;} private void operate(String x){ double x1 = stringToDouble(x);double y = stringToDouble(result);switch (op){ case 0:result =...
怎么用eclipse去编写一个计算器?
用eclipse编写计算器的步骤如下：1、新建Java项目。打开eclipse,【新建】|【Java项目】命令，弹出【创建Java项目】对话框，在【项目名】里输入要创建的项目名eclipsehello1。2、新建一个命名为Calculator .Java类。打开eclipse,【新建】|【类】命令，弹出【新建Java类】对话框。3、在代码编辑区输入以下...
帮我用最简单的java代码写个计算器! 代码越少越好
fm.setVisible(true);\/\/都是些窗中设置 添加相关组件和监听器 } public void windowClosing(WindowEvent e) { System.exit(0);\/\/退出系统 } class buttonlistener implements ActionListener {\/\/编写监听器事件 通过按键得出给果 public void actionPerformed(ActionEvent e) { Button btn = (Button) ...
谁能帮我用JAVA编写一个计算器呀。急需
我的 谁能帮我用JAVA编写一个计算器呀。急需 10 具体内容是:用java编写一个程序,用栈存储运,如输入“12+(34*5)-6”输出结果。可以先将“12+(34*5)-6”转化为后缀表达试在运算,急需,如有高手解决请发到jwp0566@163.com在此谢... 具体内容是:用java编写一个程序,用栈存储运,如输入“12+(34*5)-...
用java编写一个简单计算器
import java.awt.event.*;import javax.swing.*;\/ A simple calculator program.I saw this program in a QQ group, and help a friend correct it. author Singyuen Yip version 1.00 12\/29\/2009 see JFrame see ActionListener \/ public class JCalculator extends JFrame implements ActionListe...
用JAVA编写一个计算器
\/\/ 计算器数字按钮定义面板class Number_Key extends JPanel {\/*** *\/private static final long serialVersionUID = 1L;JButton zero = new JButton("0"); \/\/ 数字键0JButton one = new JButton("1"); \/\/ 数字键1JButton two = new JButton("2"); \/\/ 数字键2JButton three = new JButton...
