public class Hand {
	final int NUMBER_OF_CARDS = 52;
	Card[] std = new Card[NUMBER_OF_CARDS];
	int handCount;  // how many cards in Hand

	public Hand(){
        handCount = 0;
	}
	
	public void show(){
		for (int i = 0; i<handCount; i++)
			System.out.println(std[i]);
	}
	
	public void shuffle(){
		Card temp;
		
		for (int i = 0; i<handCount; i++){
			    // swap card i with a random card in the deck
    
		    int pos = ((int)(Math.random() * handCount)); // pos of random card
			temp = std[i]; 
		    std[i] = std[pos];
		    std[pos] = temp;
		}		    
	}
	
	// adds a Card to Hand
	public void addCard(Card c){
	
		if (handCount < NUMBER_OF_CARDS && c != null){
		   std[handCount] = c;	
		   handCount++;
		}

	}
	
	public boolean hasCards(){
		boolean result;
		if (handCount > 0)
			result = true;
		else
			result = false;
		return result;
	}
	
	public void addWarPile(WarPile w){
		while (w.pileNotEmpty()){
			Card c = w.takeFrom();
			this.addCard(c);	
		}
		shuffle();
	}
	
	public Card playOne(){
		Card next;
	
		if (hasCards()){
		   next = std[handCount-1];		
		   handCount = handCount - 1;
		} else
			next = null;
		return next;
		
	}
}