Fill NSMutableArray in a for loop [duplicate]

Answer 1

NSArray cannot contain primitives, you must add objects to it.

Objects that correspond to integers are NSNumbers. You can make them using the old syntax, like this,

[numbers addObject:[NSNumber numberWithInt:counter]];

or using the new syntax, like this:

[numbers addObject:@(counter)];

It goes without saying that before adding objects to the array you need to create it:

numbers = [NSMutableArray array];