Question

Can anyone see if there’s problem with the way i handle the calculation below? I seemed to be getting “You scored 0” at runtime even when the answer is actually correct.

- (void)countGain{
int gain = 0;
int percentage;
if ([answer objectForKey:@"1"] == [usrAnswer objectForKey:@"1"]) {
    gain += 1;

}
percentage = (gain / 10) * 100;

NSString *scored = [[NSString alloc] initWithFormat:@"You scored %d",percentage];
score.text = scored;
rangenans.text = [answer objectForKey:@"1"];

[scored release];

}

Answer 1

What is the point doing:

percentage = (gain / 10) * 100;

Use

percentage = gain * 10;

Rest looks good. You shouldn’t divide integers. What if you get 3/10 and this is int value?

In condition change

if([answer objectForKey:@"1"] == [usrAnswer objectForKey:@"1"])

To:

if([[answer objectForKey:@"1"] isEqualToString:[usrAnswer objectForKey:@"1"]])