Question

Can someone show me how to retrieve values by looping through a NSMutableArray? My code, which basically adds integer numbers to the array, is below :

NSMutableArray *ptr = [[NSMutableArray alloc] init];

[ptr addObject:[NSNumber numberWithInt:1]];
[ptr addObject:[NSNumber numberWithInt:2]];
[ptr addObject:[NSNumber numberWithInt:3]];

 // How to retrieve them as integers?

I’m trying to retrieve each number from the array and sum them up to a total value.

Answer 1

Its actually pretty simple:

int totalValue = 0;
for(NSNumber *number in myArray) // Use fast enumeration to iterate through the array
{
    totalValue += [number intValue];
}