When user input values are out of range

(Display Listing 1.)

The user can enter any value including fractional and negative values.

If the user enters a value of zero or a negative value:

The body of the loop is never executed and no penguins are displayed.

If the user enters a value greater then five:

• The else clause containing the term Do Nothing is executed during each iteration of the loop.
• Only five penguins are displayed, no matter how large the value entered by the user.