I want to make an android app that performs like a C++ commandline calculator.
I want the user to have to input 2 different values then choose the operation as add, subtract, multiply or divide, then perform the operation and give the result, also to be able to store the result for more of the same.
Maybe do some quick googling, and you'll find a good tutorial or two I found this http://www.instructables.com/id/Android-Development-Creating-a-Basic-Calculator/
Just to start off you'll need a gui first with buttons 0-9 and of course +,-,*,/, and a place to hold the value being worked on and received...
This example is really straight forward http://www.mindstick.com/Articles/3b162818-5e3d-4290-8520-ee36886e3a4e/Simple%20Calculator%20App%20in%20Android#.Vaoa-_nLFzk
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