NSArray* unsortedArray = [[NSArray alloc] initWithObjects:@"Z", @"K", @"B", nil];
NSSortDescriptor *sort = [NSSortDescriptor sortDescriptorWithKey:nil ascending:YES];
NSArray *sortedArray = [unsortedArray sortedArrayUsingDescriptors:[NSArray arrayWithObject:sort]];Your sortedArray is now sorted ascending.
