Help with BlackJack game

import java.util.Scanner;
public class G21
{
    static Deck deck; 
    static int playerHand;
    static int compHand;
    static Scanner scanner;
    public static void main(String[] args)
    {
        scanner = new Scanner(System.in);
        deck = new Deck();
        deck.shuffle();
        boolean deal = true;
        do {
            playerHand = 0;
            compHand = 0;
            start();
            if(playersTurn())
                dealersTurn();
            checkScores();
            System.out.println("Play again? y/n");
            if(scanner.nextLine().charAt(0) != 'y')
                deal = false;
        } while(deal);
    }
    private static void start() {
        for(int j = 0; j < 2; j++) {
            Card card = deck.dealCard();
            String s = (j == 0) ? "1st" : "2nd";
            System.out.println("Your " + s + " card: " + card);
            playerHand += card.getValue();
            // check for blackjack
        }
        for(int j = 0; j < 2; j++) {
            Card card = deck.dealCard();
            String s = (j == 0) ? "1st" : "2nd";
            System.out.println("Dealer's " + s + " card: " + card);
            compHand += card.getValue();
            // check for blackjack
        }
    }
    private static boolean playersTurn() {
        boolean takeHit = true;
        while(takeHit) {
            System.out.println("Do you want a hit? y/n");
            if(scanner.nextLine().charAt(0) == 'y') {
                Card card = deck.dealCard();
                System.out.println("Your next card: " + card);
                playerHand += card.getValue();
                if(playerHand > 21)
                    takeHit = false;
            } else {
                takeHit = false;
            }
        }
        return playerHand <= 21;
    }
    private static void dealersTurn() {
        while(compHand < 16) {
            Card card = deck.dealCard();
            System.out.println("Dealer's next card: " + card);
            compHand += card.getValue();
        }
    }
    private static void checkScores() {
        if(playerHand > 21)
            System.out.println("You lose with " + playerHand);
        else if(compHand > 21)
            System.out.println("Dealer loses with " + compHand);
        else if(compHand == 21)
            System.out.println("Dealer wins with " + compHand);
        else if (playerHand == 21)
            System.out.println("You win with " + playerHand);
        else {
            String result;
            if(playerHand > compHand)
                result = "You win: " + playerHand + " to " + compHand;
            else
                result = "Dealer wins with " + compHand + " to " + playerHand;
            System.out.println(result);
        }
    }
}

public class Deck {
private Card[] deck; 
private int cardsUsed; 
public Deck() {
deck = new Card[52];
int cardCt = 0; 
for ( int suit = 0; suit <= 3; suit++ ) {
for ( int value = 1; value <= 13; value++ ) {
deck[cardCt] = new Card(value,suit);
cardCt++;
}
}
cardsUsed = 0;
}
public void shuffle() {
// Put all the used cards back into the deck, and shuffle it into
// a random order.
for ( int i = 51; i > 0; i-- ) {
int rand = (int)(Math.random()*(i+1));
Card temp = deck[i];
deck[i] = deck[rand];
deck[rand] = temp;
}
cardsUsed = 0;
}
public int cardsLeft() {
// As cards are dealt from the deck, the number of cards left
// decreases. This function returns the number of cards that
// are still left in the deck.
return 52 - cardsUsed;
}
public Card dealCard() {
// Deals one card from the deck and returns it.
if (cardsUsed == 52)
shuffle();
cardsUsed++;
return deck[cardsUsed - 1];
}
} // end class Deck

public class Deck {
private Card[] deck; 
private int cardsUsed; 
public Deck() {
// Create an unshuffled deck of cards.
deck = new Card[52];
int cardCt = 0; 
for ( int suit = 0; suit <= 3; suit++ ) {
for ( int value = 1; value <= 13; value++ ) {
deck[cardCt] = new Card(value,suit);
cardCt++;
}
}
cardsUsed = 0;
}
public void shuffle() {
for ( int i = 51; i > 0; i-- ) {
int rand = (int)(Math.random()*(i+1));
Card temp = deck[i];
deck[i] = deck[rand];
deck[rand] = temp;
}
cardsUsed = 0;
}
public int cardsLeft() {
return 52 - cardsUsed;
}
public Card dealCard() {
if (cardsUsed == 52)
shuffle();
cardsUsed++;
return deck[cardsUsed - 1];
}
} // end class Deck