Problem F3

Provied a loop with a menu. Repeat until the user selects quit. Prompt the user to select one of the menu items. Test for numbers that are not in the menu, provide an error message, and then continue. The menu shall contain:

1. Square pattern 2. Triangle pattern 3. Diaginal pattern 4. Reverse diaginal pattern 5. Quit 

After the user selects a pattern, allow them to specify the size. If the size is smaller than 1 or larger than 9, give them an error message and repeat the specification of the size.

Once the user has correctly selected a pattern and a size, print the pattern using the size specified.

Pattern 1 is a square. Example for size 4:

4444 4444 4444 4444 

Pattern 2 is a triangle. Example for size 5:

5 55 555 5555 55555 

Pattern 3 is a square with a diaginal of numbers in stars. Example for size 6:

6***** *6**** **6*** ***6** ****6* *****6 

Pattern 4 is a square with a reversed diaginal of numbers in stars. Example for size 7:

******7 *****7* ****7** ***7*** **7**** *7***** 7****** 

Test the program once using each of these values in order: Pattern 9; when that is rejected try: Pattern 1, size 11; when that is rejected use: Pattern 1, size 3 Pattern 2, size 4 Pattern 3, size 5 Pattern 4, size 6 Quit