Write a class whose instances represent a single playing card from a deck of cards. Playing cards have two distinguishing properties: rank and suit. Use an enum type to represent rank and another enum type to represent suit. Write another class whose instances represent a full deck of cards. Both these classes should have toString methods. Write a small program to test your deck and card classes. The program can be as simple as creating a deck of cards and displaying its cards by calling its toString method.

(You might need to create the following files: Suit.java for enum type, Rank.java for enum type, Card.java, Deck.java and DeckDemo.java)