1 package com.Class_And_Object;
2
3 public class ZuoYeA01 {
4
5 int a; //定义两个整数
6 int b;
7 String fang;
8 public void jia(){
9 System.out.println("结果"+(a+b));
10 }
11 public void jian(){
12 System.out.println("结果"+(a-b));
13 }
14 public void cheng(){
15 System.out.println("结果"+(a*b));
16 }
17 public void chu(){
18 System.out.println("结果"+(a/b));
19 }
20
21 }
1 package com.Class_And_Object;
2
3 import java.util.Scanner;
4
5 public class ZuoYeA02 {
6 /**
7 * 用面向对象思想，编写一个计算器，可以实现两个整数的加、减、乘、除运算。
8 *
9 * 首先从该问题中抽象出类，然后找到它具有的属性和方法
10 *
11 * */
12 public static void main(String[] args) {
13 Scanner input=new Scanner(System.in);
14 ZuoYeA01 me = new ZuoYeA01();
15 System.out.println("输入一个整数");
16 me.a=input.nextInt();
17 System.out.println("输入另一个整数");
18 me.b=input.nextInt();
19 System.out.println("输入算数方式");
20 me.fang=input.next();
21 switch (me.fang) {
22 case "+":
23 me.jia();
24 break;
25 case "-":
26 me.jian();
27 break;
28 case "*":
29 me.cheng();
30 break;
31 case "/":
32 me.chu();
33 break;
34
35 default:
36 break;
37 }
38
39 }
40
41 }
