Using Java, choose two related items in the real world and create classes to model them (similar to Person and BankAccount). Your classes must have the following:
i. Each class must have at least two instance variables
ii. One of the classes must have one instance variable that is an object of the second class.
iii. Each class must have a constructor, a toString() method, and at least one more method that makes sense in terms of the real world objects you are modeling.
iv. Write a test class to test all of the methods you have created for both classes.