CODEWITHSUNDEEP
javaandroidandroid-layoutandroid-emulatorandroid-intent
Sushant Bhatnagar
Sushant Bhatnagar

Reputation: 3774

How to compute mathematical expression using string in Android?

Hi I have create mathematical expression as string format 

    String strFormula = "((2*(" + a + "+(2*" + st + "))+2*(" + b + "+(2*" + st + ")))*" + l + "/1000000)*" + amount;
    strFormula = CommonFunctions.FormatFormulaWithGermanStandard(strFormula);

I want to evaluate this mathematical expression .

Please suggest me usable link or sample code.

Upvotes: 1

Views: 1409

Answers (3)

Dmitri
Dmitri

Reputation: 9157

If you don't want to roll your own, JEXL should be able to handle that kind of expression, and it's relatively lightweight.

Upvotes: 0

Umar Qureshi
Umar Qureshi

Reputation: 6115

There are three ways to solve an expression which are by prefix, postfix or infix you can implement or can check java code for one of these methods to solve your expression like here is link below of code for solving an expression using postfix method

http://resume.technoplaza.net/java/postfix-calc.php

by googling you can find more useful links

Upvotes: 0

Anantha Sharma
Anantha Sharma

Reputation: 10098

there are 2 ways you can execute this.

  • use SQL lite (inbuilt) db to execute a select statement with the expression

  • use google, make a google request with the expression and it will return a response.

Upvotes: 1

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