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TUTORIAL 1.4

1.4 - Add Event Handling into GUI

Step 1:

In this example, we’ll create a simple calculator application as shown in Figure 1.4.1 below.

Step 2:

The application will contain 4 labels, 3 entry widget and 4 buttons.

Figure 1.4.1

Step 3:

Each of button created will embed with appropriate function to handle event handling
assigned to them. There will be add method, subtraction method, multiply method and
division method.