import java.util.ArrayList;
import java.util.Random;

public class Deck {

    /**
     * Creates the underlying deck as an ArrayList of Card objects. 
     * Calls build() as a subroutine to build the deck itself.
     */
    public Deck() {
    }

    /**
     * Builds the underlying deck as a standard 52 card deck. 
     * Replaces any current deck stored. 
     */
    public void build() {
    }

    /**
     * Returns the number of cards left in the deck. 
     * @return the number of cards left in the deck
     */
    public int size() {
    }

    /**
     * Returns and removes the first card of the deck.
     * @return the first card of the deck
     */
    public Card deal() {
    }

    /**
     * Shuffles the cards currently in the deck. 
     */
    public void shuffle() {
    }

    /**
     * Returns a string representation of the deck.
     * @return a string representation of the deck
     */
    public String toString() {
    }
}