Thanks Norm, Basically its a typical calculator set up with one input screen/textfield.
I need the calculator to read the number, ie. the user inputs 123, then when they push + _ * etc. it clears the screen stores the number then reads the next number the user inputs, then stores that number.
Then, when pushing equals, it will perform the calculation, i was gonna do a switch statement for the operands but i need to read the numbers properly first, i have read numerous articles and source code but this is a specific scientific calculator written in java mvc. I have yet to come across a good example of mvc calc written in java.