如何使用if else語句調用方法

Question

正如標題所示：我有一個需要調用的方法，但我不知道如何。這裏的方法：

public static int wordOrder(int order, String result1, String result2){ 
    order = result1.compareToIgnoreCase(result2); 
    if (order == 0){ 
     System.out.println("The words are the same."); 
    }else if (order > 0){ 
     System.out.println("The order of the words alphabetically is " +result2+ " then " +result1+ "."); 
    }else{ 
     System.out.println("The order of the words alphabetically is " +result1+ " then " +result2+ "."); 
    } 
    return order; 
    } 

我該如何在主要方法中調用？任何幫助將是偉大的！謝謝！

Answer 1

它應該是這樣的

主要方法

public static void main(String[] args) { 
     int resultFromMethod= wordOrder(2,"result1","result2"); 
    // your method accept argument as int, String , String and 
    // it is returning int value 
    } 

這是你的方法

public static int wordOrder(int order, String result1, String result2){ 
     order = result1.compareToIgnoreCase(result2); 
     if (order == 0){ 
      System.out.println("The words are the same."); 
     }else if (order > 0){ 
      System.out.println("The order of the words alphabetically is " +result2+ " then " +result1+ "."); 
     }else{ 
      System.out.println("The order of the words alphabetically is " +result1+ " then " +result2+ "."); 
     } 
     return order; 
    } 

這活Demo可以幫助你。

Answer 2

像這樣：wordOrder(1, "a", "b");（雖然第一個參數沒有意義）。

Answer 3

qqilihq給你正確的答案，但你可以從功能未使用的變量消除並讓功能：

public static int wordOrder(String result1, String result2){ 
    int order = result1.compareToIgnoreCase(result2); 
    if (order == 0){ 
    System.out.println("The words are the same."); 
    }else if (order > 0){ 
    System.out.println("The order of the words alphabetically is " +result2+ " then " +result1+ "."); 
    }else{ 
    System.out.println("The order of the words alphabetically is " +result1+ " then " +result2+ "."); 
    } 
    return order; 
} 

，並調用這個函數：

wordOrder("a","b"); 

Answer 4

如果我明白了，你只想要調用方法從主要方法。該代碼可以是這樣

public static void main(String [] args){ 
    int myOrder = wordOrder(1, "One word", "Second word"); 
} 

public static int wordOrder(int order, String result1, String result2){ 
    order = result1.compareToIgnoreCase(result2); 
    if (order == 0){ 
     System.out.println("The words are the same."); 
    }else if (order > 0){ 
     System.out.println("The order of the words alphabetically is " +result2+ " then " +result1+ "."); 
    }else{ 
     System.out.println("The order of the words alphabetically is " +result1+ " then " +result2+ "."); 
    } 
    return order; 
    } 

作爲一個額外注：如果方法wordOrder被設置爲靜態這隻能做，如果沒有它會出現一個它不能被引用非來自靜態上下文的靜態方法。