Apple Interview Question for Software Engineer / Developers


Country: United States




Comment hidden because of low score. Click to expand.
1
of 1 vote

The object must be either a NSObject or subclass it. Therefore you cannot store primitive types.

- Ozan Eren Bilgen October 19, 2012 | Flag Reply
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0
of 0 votes

Should it be?
Because NSDictionary's parameters for Key and Value are "id".
So I think the objects can be any object.
It can be C++ object. not NSObject.?

- hytgbn January 28, 2013 | Flag
Comment hidden because of low score. Click to expand.
1
of 1 vote

This is incorrect, any object that conforms to NSCopying can be in a NSDictionary. NSObject conforms to NSCopying already.

- Bontarest July 22, 2013 | Flag
Comment hidden because of low score. Click to expand.
0
of 0 vote

You can put any type of object into an NSDictionary. So while @"fred" is OK, 1 is not, as an integer is not an object. If you want to put a number in a dictionary, wrap it in an NSNumber.

Eg:

NSDictionary *header = [[NSDictionary alloc]initWithObjectsAndKeys:@"fred", @"title", [NSNumber numberWithInteger:1], @"count", nil];

- sachidanandam June 13, 2012 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

You can put any type in an NSDictionary. You can't put nil directly though, instead use [NSNull nil]

if you have an int or other primitive number type, wrap it in a NSNumber.

- spock05 June 29, 2012 | Flag Reply
Comment hidden because of low score. Click to expand.
-1
of 1 vote

You can put any type of object into an NSDictionary

- Anonymous June 12, 2012 | Flag Reply


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