Difference between NSArray and NSMutable Array

Question

hi am working with NSArrays using foundation tool and i have wrote the following code

    -(void)simplearrays
{
 NSMutableArray *arr = [NSMutableArray array         


        

Answer 1

You use NSMutableArray when you want to add/remove objects from the array.

If you only create array with objects and you don't plan to modify the contents then use NSArray.

You can convert from one to the other.