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  1. #1
    kokoko is offline Member
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    Sep 2009
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    Default How do I make a string math action into a real one?

    I have this program that gets 2 numbers and an action ("+/*^-")..
    I was wondering if there's a way to make that string into an action or do I have to make if's (or switch-case)?

  2. #2
    r035198x is offline Senior Member
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    Aug 2009
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    If this is a school assignment then an if-else or switch should do it.
    Realize though that the switch would need a char not an int.

    Otherwise you can have a look at the JavaScript engine shipped with Java 6.

  3. #3
    Mr.Beans's Avatar
    Mr.Beans is offline Senior Member
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    Apr 2009
    Virginia Beach, Virginia
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    You may want to push and pop operands off a stack if you want to have order of operations ie
    Java Code:
    2 + 3 * 6 != ( 2 + 3 ) * 6

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