Integer to NSInteger And Save To Core Data

Question

I have a integer named marbles, and am trying to save it into an array using the following code:

[records setValue:marbles forKey:@\"marbles\"];

Answer 1

- (id)primitiveValueForKey:(NSString *)key;    
- (void)setPrimitiveValue:(id)value forKey:(NSString *)key;

use NSNumber in place of (id)value