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Posted on    November-24-2015 7:40 AM

 iPhone iPhone  Ios  Objective C 
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Tarun Kumar

Total Post:107

Posted on    November-24-2015 8:40 AM

Cocoa doesn't provide anything called abstract. We can create a class abstract which gets check only at runtime, compile time this is not checked.

@interface AbstractClass : NSObject
@implementation AbstractClass
+ (id)alloc{
if (self == [AbstractClass class]) {
NSLog(@”Abstract Class cant be used”);
return [super alloc];

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