#Why is return statement crucial in some areas and not in others

34 messages · Page 1 of 1 (latest)

stoic pelican
# 
public class Interaction {
    public static void main(String[] args) {
        int n = 4;
        f(n);
    }

    public static int f(int n) {
        if (n <= 2) {
            n++;
            System.out.println(n);
            return n; // Add this return statement
        } else {
            int result = f(n - 1) * f(n - 2) + f(n - 2);
            System.out.println("f(" + n + ") = " + result);
            return result; // Add this return statement
        }
    }
}

here the code doesnt work without the return statement

ebon cipherBOT
#

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stoic pelican
# 
public class Interaction {
  public static void main(String[] args) {

    for (int x = 0; x <= 10; x++){
      if (x % 2 == 0){
        System.out.println("even numbers" + x);
      }
      else{
        System.out.println("odd numbers" + x);
      }

    }





  }

}```
#

but here i dont need a return for the if and else

#

is it because i used it inside a for loop

#

in the second example

#

and in the first one i used if and else straight up

willow bramble
#

void -> no return
int (or anything other than void) -> needs a return

stoic pelican
atomic cypress
#

why would you need to return result when you already printed it out?

shell ore
#

So it needs a return

atomic cypress
#

blud you dead

stoic pelican
atomic cypress
#

dont even talk

stoic pelican
#

thanks

ebon cipherBOT
# stoic pelican thanks

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atomic cypress
#

althought it is

#

if it was object void

#

you would need to return null

# 
public Void onTest(final double input) {
        System.out.println(input);
        return null;
    }```
shell ore
atomic cypress
#

nah this men needs some beginner guide

shell ore
#

...

atomic cypress
#

w3 schools

#

this is too hard to understed

stark brook
#

ah the beginner trap w3schools

ebon cipherBOT
#

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junior ice
gloomy heath
#

...

formal fern
#

He's not wrong, note. But reporting would have been better practice

stark brook
#

heyyy yall remember the rainbow thread

yeah i feel that's what's gonna happen. yeah no.
@stoic pelican make a new thread if you still need help