Objective-C Code

Question 0

self.cards[index]

Answer 0

[self.cards objectAtIndexedSubscript]

Question 1

@property(copy) NSString *title;

Answer 1

• (NSString *)title;

- (void)setTitle:(NSString *)newTitle;

Question 2

SEL someMethod = @selector(sayHello);

Answer 2

SEL - Selectors are Obj-C’s internal representation of method names. This stores a method called sayHello in someMethod that could be used to dynamically call a method at runtime.

Question 3

@property (readonly)

Answer 3

Getter only; no setter or assignment via dot-notation