博客
关于我
java使用循环switch语句编写一个简易的计算器
阅读量:551 次
发布时间:2019-03-09

本文共 2818 字,大约阅读时间需要 9 分钟。

    
简易计算器 - LoganCai
        

简易计算器

该计算器支持添加、减法、乘法、除法以及取余运算,用户可以重复使用计算功能直到选择退出。

程序代码如下:

<public class Calculator <{ <public static void main(String[] args) <{ Scanner scanner = new Scanner(System.in); char s; do { System.out.println("请输入两个数字进行简单数学运算,加减乘除以及求余,如:12 * 34"); double a = scanner.nextDouble(); char x = scanner.next().charAt(0); double b = scanner.nextDouble(); double result; switch (x) { case '+': result = a + b; System.out.println("加法运算结果为:" + result); break; case '-': result = a - b; System.out.println("减法运算结果为:" + result); break; case '*': result = a * b; System.out.println("乘法运算结果为:" + result); break; case '/': if (b == 0) { System.out.println("运算错误,除数不能为0!"); } else { result = a / b; System.out.println("除法运算结果为:" + result); } break; case '%': if (b == 0) { System.out.println("运算错误,除数不能为0!"); } else { result = a % b; System.out.println("求余运算结果为:" + result); } break; default: System.out.println("您输入的算式格式有误"); } System.out.println("是否重新开始进行运算?请输入y/n"); s = scanner.next().charAt(0); } while (s == 'y'); System.out.println("感谢您的使用!"); scanner.close(); } >

程序执行结果

该计算器可以进行基本的四则运算和取余运算,用户可以多次使用,直到选择退出。

转载地址:http://tymiz.baihongyu.com/

你可能感兴趣的文章
no connection could be made because the target machine actively refused it.问题解决
查看>>
No Datastore Session bound to thread, and configuration does not allow creation of non-transactional
查看>>
No fallbackFactory instance of type class com.ruoyi---SpringCloud Alibaba_若依微服务框架改造---工作笔记005
查看>>
No Feign Client for loadBalancing defined. Did you forget to include spring-cloud-starter-loadbalanc
查看>>
No mapping found for HTTP request with URI [/...] in DispatcherServlet with name ...的解决方法
查看>>
No mapping found for HTTP request with URI [/logout.do] in DispatcherServlet with name 'springmvc'
查看>>
No module named 'crispy_forms'等使用pycharm开发
查看>>
No module named cv2
查看>>
No module named tensorboard.main在安装tensorboardX的时候遇到的问题
查看>>
No module named ‘MySQLdb‘错误解决No module named ‘MySQLdb‘错误解决
查看>>
No new migrations found. Your system is up-to-date.
查看>>
No qualifying bean of type XXX found for dependency XXX.
查看>>
No resource identifier found for attribute 'srcCompat' in package的解决办法
查看>>
no session found for current thread
查看>>
No toolchains found in the NDK toolchains folder for ABI with prefix: mips64el-linux-android
查看>>
NO.23 ZenTaoPHP目录结构
查看>>
no1
查看>>
NO32 网络层次及OSI7层模型--TCP三次握手四次断开--子网划分
查看>>
NoClassDefFoundError: org/springframework/boot/context/properties/ConfigurationBeanFactoryMetadata
查看>>
Node JS: < 一> 初识Node JS
查看>>