code help

package blackjack;



import java.util.*;
import java.util.Scanner;


public class BlackJack
{
    public static void main(String[] args)
    {

        Scanner sc = new Scanner(System.in);

        ArrayList<Card2> cardDeck = new ArrayList<Card2>();
        String[] suit = {"Spade", "Hearts", "Clubs", "Diamonds"};
        String[] number = {"Ace","2","3","4","5","6","7","8","9","10","Jack","Queen","King"};
        for(int i = 0; i < suit.length; i++)
        {
            for(int j = 0; j < number.length; j++)
            {
                cardDeck.add(new Card2(suit[i], number[j]));
            }
        }
        int userTotal = 0;
        int Total=0;
        System.out.println("\n");
        System.out.println("User Playing");
        System.out.println("Press enter to start"+"\n");
        sc.nextLine();
        System.out.println("User's Hand");
        for(int i = 0; i < 2; i++)
        {
            Card2 result = cardDeck.get((int)(Math.random()*52));
            Total=result.getcardValue(result.getcardNumber());
            System.out.printf("%s%n",result.toString());
            userTotal=userTotal+Total;
        }
        int dealerTotal = 0;
        System.out.println("Dealer's Hand");
        for(int i = 0; i < 2; i++)
        {
            Card2 result = cardDeck.get((int)(Math.random()*52));
            Total=result.getcardValue(result.getcardNumber());
            System.out.printf("%s%n",result.toString());
            dealerTotal=userTotal+Total;
        }
        if((userTotal<21)&&(dealerTotal==21))
        {
            System.out.println("Dealer wins!");
        }
        if((userTotal==21)&&(dealerTotal<21))
        {
            System.out.println("You win!");
        }
        if((userTotal==21)&&(dealerTotal==21))
        {
            System.out.println("It's a tie!");
        }
        while(userTotal < 21)
        {
            System.out.println("\n"+"Press 1(hit) or 2(stay)");
            int key = sc.nextInt();
        if((key == 1) && (userTotal < 21))
        {
            Card2 result = cardDeck.get((int)(Math.random()*52));
            Total=result.getcardValue(result.getcardNumber());
            System.out.printf("%s%n",result.toString());
            userTotal=userTotal+Total;
            if(userTotal > 21)
            {
                System.out.println("You busted!");
                break;
            }
        }
        else
            {
                System.out.println("You stay, total is: "+userTotal);
                break;
            }
        }
        System.out.println("Dealer's Turn");
        while(dealerTotal < 21)
        {

            System.out.println("Press enter to deal another card!");
            sc.nextLine();
            Card2 result = cardDeck.get((int)(Math.random()*52));
            Total=result.getcardValue(result.getcardNumber());
            System.out.printf("%s%n",result.toString());
            dealerTotal=Total+dealerTotal;
            if(dealerTotal > 21)
            {
                System.out.println("Computer busted!"+dealerTotal);
                break;
            }
            else if(dealerTotal == 21)
            {
                System.out.println("Comptuer Wins!");
            }
            else if((dealerTotal>16)&&(dealerTotal<21))
            {
                System.out.println("Dealer stays");
                break;
            }
        }
        if((userTotal < 21) && (userTotal > dealerTotal))
        {
            System.out.println("User Wins!");
        }
        else System.out.println("Comptuer Wins!");
    }
}


package blackjack;


public class Card2
{
    String suit = "";
    String number = "";

    public Card2(String suit, String number)
    {
        this.suit = suit;
        this.number = number;
    }
    public String getSuit()
    {
        return suit;
    }
    public String getcardNumber()
    {
        return number;
    }
    public int getcardValue(String number)
    {
        int value=0;
        switch(value)
        {
            case 1: number="2";
              value=2;
              break;
            case 2: number="3";
              value=3;
              break;
            case 3: number="4";
              value=4;
              break;
            case 4: number="5";
              value=5;
              break;
            case 5: number="6";
              value=6;
              break;
            case 6: number="7";
              value=7;
              break;
            case 7: number="8";
              value=8;
              break;
            case 8: number="9";
              value=9;
              break;
            case 9: number="10";
              value=10;
              break;
            case 10: number="Jack";
              value=10;
              break;
            case 11: number="Queen";
              value=10;
              break;
            case 12: number="King";
              value=10;
              break;
            case 13: number="Ace";
              value=11;
              break;
        }
        return value;
    }
    @Override
    public String toString()
    {
        return number+" of "+suit;
    }
}