How to create an NSArray object.
How to initialized it.
How many elements in it.
How to add an object.
How to get an object at the specified index.
NSMutableArray *array; //simply defines a mutable Array array = [[NSMutableArray alloc] init]; //saves memory for the Array and initializes it. arrayCount = [array count]; //counts all objects of this array and puts it into the arrayCount variable [array addObject:[NSNumber numberWithInt:15]]; // appends "15" to the (mutable) array arrayVariable = [array objectAtIndex:378]; //returns the 379th Object of the array and puts it into arrayVariable
