Design and code a GUI that asks the user to enter 3 test scores. The user will then click a button that will cause the average of the 3 scores to be displayed on the GUI. If the average is 90 or more, a dialog box will be produced with a congratulations message. Marks will be assigned for the design and functionality of the GUI. You can use Alt + Print Screen to capture the GUI and dialog box, for submission with your program. Please see the example below for an approximation of what the GUI application will look like.

Test Score Average Enter Three Test Scores Test Score #1 Test Score #2 Test Score #3 Average Clear Calculate Average Exit