Question

5. Select the problems with the following pseudocode. Be very careful again here and make sure you understand local variables and scope. You can start by tracing from the Main method.

Module Main()

Display “welcome to the csc-115 pizza shop!”

Menu()

Display “you ordered a “+ pizzaChoice+ “ pizza”

End Module

Module Menu()

String pizzaChoice
Display “please enter what kind of pizza you want: “

Input pizzaChoice

Display “Are you sure? Please enter your pizza choice again”

String pizzaChoice

Input pizzaChoice

End Module

A. pizzaChoice module is not defined

B. pizzaChoice variable cannot be used in body of Main because it is local and not in the scope of main

C. pizzaChoice variable must be a numeric type

D. pizzaChoice variable is declared two times in the same scope.

Answer 1

Problems :

B. pizzaChoice variable cannot be used in body of Main because it is local and not in the scope of main

Display “you ordered a “+ pizzaChoice+ “ pizza”

Display statement in Main() module is using pizzaChoice variable but it is notdeclared in Main()

D. pizzaChoice variable is declared two times in the same scope.

String pizzaChoice

variable declaration is done two times in Menu() module which is invalid.

The other two statements

A. A. pizzaChoice module is not defined ---- pizzaChoice is a variable not a Module.

C. pizzaChoice variable must be a numeric type --- It is not necessary that pizzaChoice variable should be numeric only. It can be string datatype also.

So correct options are B and D.

Do ask if any doubt. Please upvote.