在纸牌游戏中换卡

Question

谁能帮我吗？ 我真的很想尝试使方法changeCard工作，我尝试的一切都行不通。 假设与myDeck.shuffleDeck或myDeck.getSuit和myDeck.getCard有关，其他所有功能都可以正常工作，因为玩家无法切换其卡牌而破坏了我的整个游戏。

这是我的cardClass代码

import java.util.Random;

public class Card
{
// instance variables
public DeckOfCards myDeck;
public int card;
public int suit; 
public String cardName;
public String getSuitName;




public Card()
{
   myDeck = new DeckOfCards();
   myDeck.shuffleDeck();
   card = myDeck.getCard();
   suit = myDeck.getSuit();
   setCardName();

}

public String showCard()
{
   return cardName;
}

public void changeCard()
{

}


public void setCardName()
{
    switch(card)
    {
        case 0:
        cardName = "The Ace of " + getSuitName();
            break;
        case 10: 
        cardName = "The Jack of " + getSuitName();
            break;
        case 11:
        cardName = "The Queen of " + getSuitName();
            break;
        case 12:
        cardName = "The King of " + getSuitName();
            break;
        default:
        cardName =  "The " + card + " Of " + getSuitName();
    }
}

public String getSuitName()
{
       switch(suit)
       {
          case 0 :
          return getSuitName = "Spades";
          case 1 :
          return getSuitName = "Hearts";
          case 2 :
          return getSuitName = "Diamonds";
          case 3 :
          return getSuitName = "Clubs";
          default:
          return "";

        }
 }

 }