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For our first practice example, we will create a simple calculator. This calculator is very simple. It can only add, subtract, multiply and divide. It depends upon your keyboard to enter input. In a future example, we will create a calculator that looks much like the calculators you have used in the past. Our calculator has two boxes, each for entering a value. The operator is determined by pressing the radio button corresponding to the operation we wish to perform. The result is displayed in a label box to the right of the equals sign. Below is a graphic showing what our simple calculator dialog box should look like: You can run an example of the above dialog by downloading this file. When you are down, you can check out my source code here.
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