这是我仿照WINDOWS下的计算器而做的，计算处理用逆波兰式，现在还只能进行十进制的计算，其他还没有实现被我屏蔽了。-modeled on the Windows calculator and do the calculations using inverse Polish, now only for the metric system, the other has not been realized I was a shield.

比较简单的一个java写的表达式计算器。核心算法为经典的中缀转逆波兰算法。用了正则表达式进行合法性检查。新人刚学java，写的不好的地方请指正，谢谢！-Relatively simple to write a java expression evaluator. The core algorithm classic infix turn Reverse Polish algorithm. Use regular expressions to check the legality. Newcome

JAVA编写的简单计算器 逆波兰式的实现 JAVA课程的作业-Write a program that reads an expression as input and print out the result. Only integers and operators below are allowed in the expression: +-*/ ( ) Your program should be able to deal with multip