How to convert string to math equation? [duplicate] - java

This question already has answers here:
Closed 11 years ago.
Possible Duplicate:
Java: Parse a mathematical expression given as a string and return a number
Hello there,
I would like to ask you, if exist some way how to convert string "1+2+3" to math equation? Exist for this purpose some function or method in Java?
Thanks for hints.

It's not part of the standard API.
But I implemented it in my project, you can have a look here.
https://github.com/MarkyVasconcelos/Towel/wiki/Expression

This would necessarily depend on the implementation of the Equation class you're using. Check its API.

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Don't duplicate.
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How to convert a string like "1+23-56" into a number [duplicate]

This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
Evaluating a math expression given in string form
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