比較兩個語句與一個定義變量java

Question

我寫了這個隨機從卡組中挑選兩張卡片的代碼，但我遇到了麻煩，試圖讓它進行比較，我遇到了一些問題並希望解決這個問題一步一步但不確定如何比較兩個語句只有一個定義的變量？

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"); 
     } 
    }  
} 

我修改了代碼，以便它顯示如果兩個隨手拈卡或隨機挑卡之間的花色相同，但有時它不打印語句之間的相同等級的，爲什麼？

Answer 1

嘗試是這樣的：

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)"); 
    } 
    } 
}