java - 比较两个语句与一个定义变量java

Question

我编写了这段代码，从一副牌中随机挑选两张牌，但我在尝试比较它时遇到了麻烦，我遇到了一些问题，想一步一步解决这个问题，但不确定如何将两个语句与仅一个定义的变量进行比较？

    package question1;

    public class HouseOfCards {

    public static void main(String[] args) {

        String [] SuitNames= {
                "Spades","Diamonds","Clubs","Hearts"
        };
        String [] CardNames= {
                "Ace","One","Two","Three","Four","Five","Six","Seven","Eight","Nine","Ten","Jack","Queen","King"
        };
        String SuitName="hi",SuitName2="die";
        String CardName="hi", CardName2="die";
        for (int i=0; i<=1; i++){
            int numCard=52;
            int randNum=(int)(Math.random() * numCard);
            int randNum2=(int)(Math.random() * numCard);
            int suitNum = randNum / 13;
            int cardNum = randNum % 13;
            int suitNum2 = randNum2 / 13;
            int cardNum2 = randNum2 % 13;
            SuitName = SuitNames[suitNum];
            CardName = CardNames[cardNum];
            SuitName2 = SuitNames [suitNum2];
            CardName2 = CardNames[cardNum2];
            System.out.println(CardName + " of " + SuitName);
        }
        if (CardName.equals(CardName2)){
            System.out.println("Same Rank");
        }

        else if (SuitName.equals(SuitName2)){
            System.out.println("Same Suit");
        }
    }    
}

我编辑了我的代码，以便它显示两张随机挑选的牌之间的排名是否相同或随机挑选的牌之间的花色是否相同，但有时它不会打印该语句，为什么？

Answer 1

尝试这样的事情:

public class HouseOfCards {

public class HouseOfCards {

public static void main(String[] args) {
    int Spades=1;
    String [] suitNames= {
            "Spades","Diamonds","Clubs","Hearts"
    };
    String [] cardNames= {
            "Ace","One","Two","Three","Four","Five","Six","Seven","Eight","Nine","Ten","Jack","Queen","King"
    };
    String card1="";
    String card2="";
    String suitName="";
    String cardName1="";
    String suitName2="";
    String cardName2="";
    int cardPosition1 = 0;
    int cardPosition2 = 0;
    for (int i=0; i<=1; i++){
        int numCard=52;
        int randNum=(int)(Math.random() * numCard);
        int suitNum = randNum / 13;
        int cardNum = randNum % 13;
        if(i==0) {          
            suitName = suitNames[suitNum];
            cardName1 = cardNames[cardNum];
            card1 = cardName1+" of "+suitName;
        }
        else {
            suitName2 = suitNames[suitNum];
            cardName2 = cardNames[cardNum];
            card2 = cardName2+" of "+suitName2;
        }
    }
    System.out.println(card1);
    System.out.println(card2);

    for (int i = 0; i < cardNames.length; i++) {
        if(cardName1.equals(cardNames[i])) {
            cardPosition1 = i;
        }
        if(cardName2.equals(cardNames[i])) {
            cardPosition2 = i;
        }
    }
    System.out.println(cardPosition1);
    System.out.println(cardPosition2);
    if(cardPosition1>cardPosition2) {
        System.out.println("First card has bigger number");
    }
    else if (cardPosition1<cardPosition2) {
        System.out.println("Second card has bigger number");
    }
    else if (cardPosition1==cardPosition2) {
        System.out.println("Equal cards (probably different suites you can check it further)"); 
    }
  }
 }