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calculator design problem

oghenekaro EFEKODO
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Joined: Oct 10, 2005
Posts: 56
pls i need help,i was trying to design a calculator but face the following problem:after creating a class for the KeyPad,a class for Display(i.e screen),and a class for Maths(i.e operators).Couldn't bring them to function one entity.pls tell what to do in order get my calculator working.thanks
Michael Dunn
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Joined: Jun 09, 2003
Posts: 4632
my car has plenty of gas, tyres have air, radiator has water,
but it won't move. Please help.
Campbell Ritchie
Sheriff

Joined: Oct 13, 2005
Posts: 39834
    
  28
You divide a visual app up into MVC. M=model, V=view, and C=control.
You have the "V" in the form of the keys and display, and you have part of the "C" in the form of your maths class.


Now you need the "M" bit which takes the numbers from the keys, passes them to the maths class, gets the result back, and passes that to the display.
The "M" bit can mean the data you are dealing with or the way the whole things hangs together.
 
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subject: calculator design problem