How Old Are You?¶

Make a program which displays a different message depending on the age given. Here are the possible responses:

  • age is less than 16, say "You can't drive."

  • age is less than 18, say "You can't vote."

  • age is less than 21, say "You can't rent a car."

  • age is 21 or over, say "You can do anything that's legal."

Here’s a sample run. Notice that a person who is under 16 will display three messages, one for being under 16, one for also being under 18, and one for also being under 25.

Name the file:

how_old.py

Hey, what's your name? Billy Corgan
Ok, Billy Corgan, how old are you? 17

You can't vote, Billy Corgan.
You can't rent a car, Billy Corgan.

What You Should Do on Your Own¶

  1. Come up with a test plan that takes into account all possible outcomes of this program. Think of the IPO model. What inputs will result in what output? For example:

    Input

    Output

    age = 17

    Can’t vote, can’t rent a car

©2021 Daniel Gallo

This assignment is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License.

Creative Commons License

Adapted for Python from Graham Mitchell’s Programming By Doing