Adding a new method

We've just received a feature request from the Basketballs R Us management! They've decided to start shipping basketballs without air in them, instead of inflated. We need to add a method to the Basketball simulation for deflating a Basketball: 
public void deflate()
after which isDribbleable should return false.

Add this method, and add a few lines to BasketballTest to verify that it's working.

Checkpoint 1

  1. Show the TA your StringTest class from the third page
  2. Show the TA your RandomTest class from the third page
  3. Show the TA your modified Basketball and BasketballTest classes with the new deflate method