(Displaying a Square of Any Character)Modify the function created in Exercise to form the square out of whatever character is contained in character parameter fillCharacter. Thus if side is 5 and fillCharacter is “#”, then this function should print:

Exercise
(Square of Asterisks)Write a function that displays a solid square of asterisks whose side is specified in integer parameter side. For example, if side is 4, the function displays:

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