# Quiz 2: Inheritance & Polymorphism

Create a checked exception named InvalidUsernameException. Then create a Login class; Login has a username String variable and a password String variable. Its constructor must throw your new Exception if the username contains (in any letter casing) the word "admin". Then create a Main class: its main method creates a Login and prints its username and password. Show the best-practice way of doing this. (6/12)

I created a class named Rectangle with an instance variables for length and width. Show its default constructor; under what conditions is that constructor made by Java? Create a Square class that is a child of Rectangle too. (2/12)

Create a class Drink with instance data for name (a String). Create a child class CocaCola that also has a boolean for whether it is "diet" or not. Drink has a method calld display() that prints its data. CocaCola overrides it and prints its data. (4/12)