How can we evaluate math expressions in android JAVA?

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I am creating a calculator and I want to avoid "if/then" condition and evaluate the STRING expression just like Eval() method in Javascript.

I have also looked for Java ScriptEngine Rhino/Nashorn , but dont  know how to use them in android studio ?

Can anyone please help me out 

Thank you.

What I have tried:

I have treid MXPARSER but it looks outdated and fire runtime errors or maybe I didnt used it properly.

Posted 1-Jul-20 19:12pm

Deepesh mhatre

Updated 1-Jul-20 20:10pm

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OriginalGriff · Answer 1 · 2020-07-01T20:10:00

Solution 1

Google is your friend: he can find things a lot faster than asking here.
A very, very quick search gave me over 300,000 hits: java string expression evaluator - Google Search[^] most of which look like they contain complete solutions...

In future, please try to do at least basic research yourself, and not waste your time or ours?

Posted 1-Jul-20 20:10pm

OriginalGriff

Comments

[no name] 2-Jul-20 7:24am

and you also please take a moment to read my whole question. I already mentioned what I got from your baby-Google.
and dont act like you own this site.

CPallini 2-Jul-20 7:51am

5.