Newbie with seemingly simple problem

Programming Questions

what_carl..

Newbie with seemingly simple problem

in Programming Questions • 10 months ago

Hi,

I Can't seem to figure out why I'm getting a " This method must return a result of type int" error pointing to the determineLT() method.

Code:

int qty;
int lt;

void setup() {
qty = setQty(7.0);
println(qty);
}

int setQty(float s) {
if (360 % s != 0) {
    lt = determineLT(s);
    return floor (360/s);
}
else {
    lt = 360;
    return int (360/s);
}
}

int determineLT(float incr) {
for (int i = 360; i > 0; i--) {
    float j = float(i);
    if (j % incr == 0) {
      println(i);
      return i;
    }
    else {
      return 1;
    }
}
}

As far as I can tell—it is returning an int. Any help on this would be greatly appreciated.
Thanks!

Replies(1)

GoToLoop

Re: Newbie with seemingly simple problem

10 months ago

determineLT() has to return a value of type int.
For that you need to use return statement.

Problem is, your 2 returns are deep inside conditional branching blocks like for & if.
Since there's no guarantee that statements inside conditional branches can always be reached at all; Java demands at least a return placed outside of any branching!

Just put a "default" return value at the end of determineLT().