Book NSSet, Objective-C

Book NSSet

//gcc 5.0.4

#import <Foundation/Foundation.h>

int main (int argc, const char * argv[])
{
    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
    
    NSSet *statinoryitems=[NSSet setWithObjects:@"Pen",@"Pencil",@"Book",@"Marker",nil];
     
    NSSet *statinoryitems2=[NSSet setWithObjects:@"Pen",@"Pencil",@"Book",@"Marker",nil];
     
    NSSet *statinoryitems3=[NSSet setWithObjects:@"Pen",@"Pencil",@"Book",@"Marker",nil];
     NSSet *PurItems=[NSSet setWithObjects:@"a",@"b",@"c",@"d",nil];
    NSLog (@"%@",statinoryitems);
    
    for(id items in statinoryitems)
    {
    NSLog(@"%@",items);
    }
    
    
    if([statinoryitems isEqualToSet:statinoryitems3  ])
    {NSLog(@"All items is Good");
    }
    
     if([statinoryitems intersectsSet:statinoryitems2  ])
    {NSLog(@"All items is Awesome");
    }
    
     if([statinoryitems isSubsetOfSet:statinoryitems  ])
    {NSLog(@"All items is Not Bad");
    }
    
     if([statinoryitems containsObject:@"Book"  ])
    {NSLog(@"Book Mil Gaya");
    }
    
    NSSet *newSet=[statinoryitems setByAddingObjectsFromSet:PurItems];
    NSLog(@"%@",newSet);
    [pool drain];
    return 0;
}


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