CODEWITHSUNDEEP
javareturn
user5563815
user5563815

Reputation:

Returning a value. The output always print 0

i'm learning how to return a value and try to write the following code;

public class JustTryingReturn {

static int a, b;
static Scanner sc = new Scanner(System.in);
static int nganu() {
return a+b;
}

public static void main(String[] args) {
    int c = nganu();
    System.out.println("Enter number ");
    a = sc.nextInt();
    b = sc.nextInt();
    System.out.println(c);
}

}

But the output always print 0 instead of a+b. What did i do wrong? Thank you.

Upvotes: 0

Views: 59

Answers (4)

Abdelhak
Abdelhak

Reputation: 8387

Try to use this just change of order of this line:

 int c = nganu();
 a = sc.nextInt();
 b = sc.nextInt();

LIke this:

 public class JustTryingReturn {
  static    int a, b;

 static Scanner sc = new Scanner(System.in);
 static  int nganu() {
 return a+b;
}

 public static void main(String[] args) {

  // the order was changed
   System.out.println("Enter number ");
    a = sc.nextInt();  
    b = sc.nextInt();   
   int c = nganu();
System.out.println(c);
 }  

  }

Upvotes: 1

Vishal Gajera
Vishal Gajera

Reputation: 4207

Please change your code accordingly,

public static void main(String[] args) {
    //int c = nganu(); // here first time a,b is 0, still you haven't assign...
    System.out.println("Enter number ");
    a = sc.nextInt(); // now, actually you have assign value to a
    b = sc.nextInt(); // now, actually you have assign value to b
    int c = nganu();
    System.out.println(c);
}

Upvotes: 0

Idos
Idos

Reputation: 15310

You have to call your function after you assign values to a and b.
So put this: int c = nganu(); after you get a and b.

Upvotes: 1

Eran
Eran

Reputation: 393801

You should make the call

int c = nganu();

after you assign the input values of a and b. Otherwise they'll still contain 0 by default when you compute their sum.

System.out.println("Enter number ");
a = sc.nextInt();
b = sc.nextInt();
int c = nganu();
System.out.println(c);

Upvotes: 1

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