Java 需要找出determineast模块中return语句的错误

我正试图让这段代码正常工作，我的问题在于让return语句正确，这样它就能打印出正确的结果。非常感谢您的帮助。问题在于让它返回正确的值。当我让它工作时，它将返回一个值0

public static void main (String []args){

    int famIncome, numChildren, asstTotal, asstAmount;

    numChildren = userChildren();

    famIncome = userIncome();

    asstTotal = determineAsst(numChildren, famIncome);

    System.out.println(asstTotal);
    }

public static int userChildren (){
    int children = 0;
    Scanner keyboard = new Scanner(System.in);
    System.out.println("Enter Your Number of Children: ");
    children = keyboard.nextInt();

    return children;
}

public static int userIncome (){
    int income = 0;
    Scanner keyboard = new Scanner(System.in);
    System.out.println("Enter Your Family Income: ");
    income = keyboard.nextInt();

    return income;
}

public static void displayResults(int famIncome, int numChildren){

    System.out.println("Your Income is: " + famIncome + " " + "Children: " + numChildren);

}

public static int determineAsst (int userIncome, int numChildren){


    if(userIncome > 25000 && numChildren > 2){
        int asstTotal = 0;

         asstTotal = numChildren * 1000;

         return asstTotal;

    }


    return asstTotal;


}

---

}

为了进行编译

public static int determineAsst (int userIncome, int numChildren){
   if(userIncome > 25000 && numChildren > 2){
      int asstTotal = 0;
      asstTotal = numChildren * 1000;
      return asstTotal;
   }
   return asstTotal;
}

必须更改为：

public static int determineAsst (int userIncome, int numChildren){
   int asstTotal = 0;
   if(userIncome > 25000 && numChildren > 2){
      asstTotal = numChildren * 1000;
   }
   return asstTotal;
}

在原始代码中，

asstTotal

变量直到在if块内才会声明。这意味着一旦if块退出，该变量就不再存在。它是错误的，因此，return语句不会编译

另外，正如@donfuxx所提到的，if块中的return语句是不必要的。它可以工作，但它是多余的

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这能解决您的问题吗？

重写方法如下：

public static int determineAsst (int userIncome, int numChildren){

    int asstTotal = 0; //here!
    if(userIncome > 25000 && numChildren > 2){
        //int asstTotal = 0; not here!

         asstTotal = numChildren * 1000;

         //return statement here not necessary 

    }


    return asstTotal;


}

---

这不会编译（请看一下

publicstaticintdeterminateast

），为什么不先编译它呢。也许这样做可以解决你的问题；）请注意，标记不是关键字。在标签列表中填入与问题相同的单词（条件、语句、返回、值），无助于对其进行分类。务必阅读选择标签时出现的说明！