Use CommandLine for Calculate

Question

Hi All I have one question for you help me. I have one string as below: string str=7+9*6-5; how we can calculate it? if you know please do it and send code to me. Thank advance! From: Mala

Jure · Answer

You need to write a math parser. I wrote one with GUI in C++ and it wasn't that hard. I did it by scanning each character and separating operators and numbers into two arrays. Since strings are objects in C# you don't even have to check each character but simply split a string by a set of operators. The string.Split method unfortunately doesn't support splitting and keeping separator strings so I've wrote StringSplitter class few days ago which supports various ways of splitting and extracting. Simply add Fresh.dll to your project references to use my library.

Manath Pathana · Answer

Yes it read from keyboard. it is string. but we want to calculate it. we need to convert: how to convert operator from string? and how to convert string to number? understand my question?

Suthish Nair · Answer

Gomathi How will this work read on the query he posted..

Manath Pathana · Answer

That not i want Mean we input string from keyboard as below: str=7+9*6-5; then we want to calculate it. How can we do?

Gomathi Palaniswamy · Answer

Hi friend You can calculate like string str = (7+9*6-5).ToString();