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String maths

Nikos Stavros
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Joined: Feb 24, 2006
Posts: 243

I want the user to input some text ie "2 * 2 / 4 + 1" and the program to do the maths. Is there any open source code to do this or do I need to construct a series of case conditions


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john guthrie
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Joined: Aug 05, 2002
Posts: 124
you might look at ANTLR vice a series of case conditions
Edwin Dalorzo
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Joined: Dec 31, 2004
Posts: 961
I recently replied a post like this. I that case I suggested the use of BeanShell. It is an open source scripting language and it comes with an expression evaluator. You simply pass an String containg the expression and get the result.

Another option would be to use the new scripting powers of JDK6. Take a look at it.

I hope this helps!
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: String maths
 
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