两类 计算器

public class Computer {public double num;public double num1;public char fuhao;public void getResult() {double result = 0;switch (fuhao) {case '+':result = num + num1;break;case '-':result = num - num1;break;case '*':result = num * num1;break;case '/':result = num / num1;break;default:}num=result;System.out.println(result);}}

import java.util.Scanner;public class Tset1 {/** * @param args */public static void main(String[] args) {Computer cal = new Computer();Scanner input = new Scanner(System.in);System.out.println("请输入第一个数");cal.num = input.nextDouble();System.out.println("请输入第二个数");cal.num1 = input.nextDouble();System.out.println("请输入操作符");cal.fuhao = input.next().charAt(0);cal.getResult();while(true){System.out.println("请输入操作个数");cal.num1 = input.nextDouble();System.out.println("请输入操作符");cal.fuhao = input.next().charAt(0);cal.getResult();}}}