Flip Again?

In this program, you’ll see how using a “while True and break” (post-test) loop might be better than a regular while loop.

Files Needed

What You Should See

The code I have provided does not run. Once you fix it, it will look roughly like this.

You flip a coin and it is... TAILS
Would you like to flip again (y/n)? y
You flip a coin and it is... HEADS
Would you like to flip again (y/n)? y
You flip a coin and it is... HEADS
Would you like to flip again (y/n)? n

What You Should Do on Your Own

Assignments turned in without these things will receive no credit.

  1. The code as given does not run. Notice that the while tests if again == "y", but the variable again doesn’t have a string value at first. Give it a string value so that the code will not encounter a run-time error and the loop will run at least once.

  2. Now that program is working, change the loop from a pre-test while loop to a post-test “while-true” loop. Make sure it still works.

  3. What happens if you delete the again = "y" line right before the loop? Does the program still work? Why or why not? (Answer in a comment.)

©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