Loop through NSArray objectAtIndex

Question

NSInteger * count = [monLessonArrayA count]; for (i = 0; i <count; i ++) {arrayVar = [monLessonArrayA objectAtIndex: i]; }

I get an error: I am not declared, how can I set objectAtIndex to i so that I can loop it up every time?

Thank.

Answer 1

Because your self is not declared.

for (int i = 0; i < count; i++)

In addition, you do not need *to NSInteger.

NSInteger count = [monLessonArrayA count]; 

Answer 2

You just forgot to declare i(and its data type) before using it in a loop:

for (int i = 0; i < count; i++) {

Answer 3

, :

for (id someObject in monLessonArrayA) {
    // Do stuff
}