Stuff

import java.util.Random;
import myJavaLib.io.Keyboard;


class DeckOfCards
{
    enum Suit {Diamond, Club, Heart, Spade};						
    enum Rank {Ace, Two, Three, Four, Five, Six, Seven, Eight, Nine, Ten, Jack, Queen, King};
    private Rank[] rank=new Rank[52];
    private Suit[] suit=new Suit[52];
    private int top=0;
    public static DeckOfCards d = null;

    private DeckOfCards()
    {
        for (int i=0; i<4; i++)
        {
            rank[0+13*i] = Rank.Ace;
            rank[1+13*i] = Rank.Two;
            rank[2+13*i] = Rank.Three;
            rank[3+13*i] = Rank.Four;
            rank[4+13*i] = Rank.Five;
            rank[5+13*i] = Rank.Six;
            rank[6+13*i] = Rank.Seven;
            rank[7+13*i] = Rank.Eight;
            rank[8+13*i] = Rank.Nine;
            rank[9+13*i] = Rank.Ten;
            rank[10+13*i] = Rank.Jack;
            rank[11+13*i] = Rank.Queen;
            rank[12+13*i] = Rank.King;
        }
        for (int i=0; i<13; i++)
            suit[i]=Suit.Spade;
        for (int i=13; i<26; i++)
            suit[i]= Suit.Heart;
        for (int i=26; i<39; i++)
            suit[i]= Suit.Club;
        for (int i=39; i<52; i++)
            suit[i]= Suit.Diamond;
        top=0;
    }
    public static DeckOfCards getDeck()
    {
        if (d == null) d = new DeckOfCards();
        return d;
    } 
    public void shuffle()
    {
        int x, y;
        Suit tempS;
        Rank tempR;
        Random rand=new Random();
        for (int i=0; i<1000; ++i)
        {
            x=rand.nextInt(52);
            y=rand.nextInt(52);
            tempR=rank[x];
            rank[x]=rank[y];
            rank[y]=tempR;
            tempS=suit[x];
            suit[x]=suit[y];
            suit[y]=tempS;
        }
        top=0;
    }
    public String deal()
    {
        String card="";
        if (top>=52) card = "NoMoreCard";
        else card = ""+rank[top]+suit[top];
        top++;
        return card;
    }
}
class DeckOfCardsApp
{
    public static void main(String[] args)
    {
        DeckOfCards d = DeckOfCards.getDeck();
        System.out.print("New deck or shuffled deck? N/S: ");
        char ch=Keyboard.nextChar();
        if (ch=='S' || ch=='s') d.shuffle();
        System.out.print("How many cards do you want?");
        int n= Keyboard.nextInt();
        for (int i=0; i<n; ++i)
            System.out.println(d.deal());
    }
}