Case statements are used to define several possible versions of variable that could be input to the computer.
'Switch' is a keyword that tells the compiler that what follows will be a list of these different possibilities.
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For example, a program might ask the user to make a
decision:
"Press 1 to save, 2 to load or 3 to exit". The program code below responds accordingly:
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SWITCH userInput
CASE 1: save
CASE 2: load
CASE 3: exit
DEFAULT:
print("Please press 1, 2 or 3")
The syntax of the code will vary depending on the programming language.
The
pseudo code above checks the response of the user and
carries out the appropriate action. If the user presses
any other key then the message "Please press 1,2 or
3" is displayed.
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