比较两个语句与一个定义变量java

Question

我写了这个随机从卡组中挑选两张卡片的代码，但我遇到了麻烦，试图让它进行比较，我遇到了一些问题并希望解决这个问题一步一步但不确定如何比较两个语句只有一个定义的变量？

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"); 
     } 
    }  
} 

我修改了代码，以便它显示如果两个随手拈卡或随机挑卡之间的花色相同，但有时它不打印语句之间的相同等级的，为什么？

Answer 1

尝试是这样的：

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)"); 
    } 
    } 
}