For a Chemical Equation Balancer App (Android), how do I count the number of atoms of each element in each term?

Posted by Upas on Stack Overflow See other posts from Stack Overflow or by Upas
Published on 2010-12-28T00:39:01Z Indexed on 2010/12/28 18:53 UTC
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java

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android

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SDK

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chemistry

This is my app: If someone enters "C6H12O6+O2=CO2+H2O", then I have already written code to split the equation into terms, so in an ArrayList called rterms I have the strings: C6H12O6 CO2 and in another ArrayList called pterms, I have: CO2 H2O

I need to count the number of C's in each term of the reactants, so 6 for term 1, 0 for term 2, and then the H's and then O's. How would I do this? Any help is appreciated.

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