在特定的序列號

-1

Java數組歇我得在它的字符串數組。在這個例子中，我將使用一個充滿類的數組。而且還有一個數組，其等級通過用戶交互得到填補。現在在特定的序列號

，我就擁有了一切，除了其中最後兩個班這給更多的研究點，那麼剩下的印刷得到雙倍的一部分工作，我想不通這哪裏出了問題。

一些代碼有荷蘭人的名字所以這裏的翻譯列表：
Cijfer是等級
vakken是類

public static void main (String[] args) { 

    Scanner input = new Scanner(System.in); 
    final int MAX_ECTS = 39; 
    int ects = 0; 
    final int ECTS_VAK = 3; 
    final int ECTS_PROJECT = 12; 
    String[] vakkenArray = {"Programming", "Business", "Infrastructure", "Databases", "User Interaction", "Project Fasten Your Seatbelts", "Project Agile Developement"}; 
    double[] cijferArray = new double[7]; 

    for (int i = 0; i < cijferArray.length; i++) 
    { 
     System.out.println("Voer A.U.B het cijfer in voor " + vakkenArray[i]); 
     cijferArray[i] = input.nextDouble(); 
    } 

    for (int i = 0; i < vakkenArray.length; i++) 
    { 
     if (i < 5) 
     { 
      if (cijferArray[i] >= 5.5) 
      { 
       ects = ects + 3; 
       System.out.println("Vak/Project:" + vakkenArray[i] + " Cijfer:" + cijferArray[i] + " ECTS Behaald: " + ECTS_VAK); 

     } 

     if (cijferArray[i] <= 5.5) 
     { 
      System.out.println("Vak/Project:" + vakkenArray[i] + " Cijfer:" + cijferArray[i] + " ECTS Behaald: " + 0); 
     } 

    } 
    else 
    { 
     if (vakkenArray[i].equals("Project Fasten Your Seatbelts") && (cijferArray[i] >= 5.5)) 
     { 
      System.out.println("Vak/Project:" + vakkenArray[i] + " Cijfer:" + cijferArray[i] + " ECTS Behaald: " + ECTS_PROJECT); 
      ects = ects + 12; 
     } 
     else 
     { 
      System.out.println("Vak/Project:" + vakkenArray[i] + " Cijfer:" + cijferArray[i] + " ECTS Behaald: " + 0); 
     } 

     if (vakkenArray[i].equals("Project Agile Developement") && (cijferArray[i] >= 5.5)) 
     { 
      System.out.println("Vak/Project:" + vakkenArray[i] + " Cijfer:" + cijferArray[i] + " ECTS Behaald: " + ECTS_PROJECT); 
      ects = ects + 12; 
     } 
     else 
     { 
      System.out.println("Vak/Project:" + vakkenArray[i] + " Cijfer:" + cijferArray[i] + " ECTS Behaald: " + 0); 
     } 
    } 


    System.out.println("Totaal behaalde ECTS: " + ects + "/39");  

}

這是我的代碼的輸出：

Vak/Project:Programming Cijfer:5.0 ECTS Behaald: 0 
Vak/Project:Business Cijfer:5.0 ECTS Behaald: 0 
Vak/Project:Infrastructure Cijfer:5.0 ECTS Behaald: 0 
Vak/Project:Databases Cijfer:5.0 ECTS Behaald: 0 
Vak/Project:User Interaction Cijfer:5.0 ECTS Behaald: 0 
Vak/Project:Project Fasten Your Seatbelts Cijfer:5.0 ECTS Behaald: 0 
Vak/Project:Project Fasten Your Seatbelts Cijfer:5.0 ECTS Behaald: 0 
Vak/Project:Project Agile Developement Cijfer:5.0 ECTS Behaald: 0 
Vak/Project:Project Agile Developement Cijfer:5.0 ECTS Behaald: 0 
Totaal behaalde ECTS: 0/39

這是應該的：

Vak/Project:Programming Cijfer:5.0 ECTS Behaald: 0 
Vak/Project:Business Cijfer:5.0 ECTS Behaald: 0 
Vak/Project:Infrastructure Cijfer:5.0 ECTS Behaald: 0 
Vak/Project:Databases Cijfer:5.0 ECTS Behaald: 0 
Vak/Project:User Interaction Cijfer:5.0 ECTS Behaald: 0 
Vak/Project:Project Fasten Your Seatbelts Cijfer:5.0 ECTS Behaald: 0 
Vak/Project:Project Agile Developement Cijfer:5.0 ECTS Behaald: 0 
Totaal behaalde ECTS: 0/39

如何看項目得到雙面印刷。

來源

2014-09-19 B-W

不通過''==操作符比較字符串。使用'equals'方法。 ''==比較對象引用（在計算機存儲器地址），而不是字符串對象值。 – 2014-09-19 17:02:17

好吧會的。我不習慣java的，只是還沒有那麼...... – 2014-09-19 17:03:52

檢查本教程例如：http://www.javabeginner.com/ – 2014-09-19 17:04:41

我已經改變else語句來爲以下固定它：

if (vakkenArray[i].equals("Project Fasten Your Seatbelts") 
     && (cijferArray[i] <= 5.5))

來源

2014-09-19 17:12:44

在特定的序列號

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