第十章 面向对象 简答题2

package cn.jbit.test.yang;public class Calculator {// 计算器类public int num1;public int num2;public int sum;public char fuhao;public void show() {sum = 0;switch (fuhao) {case '+':sum = num1 + num2;break;case '-':sum = num1 - num2;break;case '*':sum = num1 * num2;break;case '/':sum = num1 / num2;break;default:System.out.println("输入错误");}System.out.println(sum);}}

 

package cn.jbit.test.yang;import java.util.Scanner;public class Calculator1 {public static void main(String[] args) {Scanner input = new Scanner(System.in);Calculator calculator = new Calculator();System.out.print("请输入第一个数");calculator.num1 = input.nextInt();System.out.print("请输入第二个数");calculator.num2 = input.nextInt();System.out.print("请输入运算符");calculator.fuhao = input.next().charAt(0);calculator.show();}}