NSSet Program in objectice-c, Objective-C

NSSet Program in objectice-c

//gcc 4.8.4

#import <Foundation/Foundation.h>
 
int main(void)
{
    NSSet *class_mates= [NSSet setWithObjects:@"Ashish", @"Keval",@"Kartik", nil];
    NSSet *cousins= [NSSet setWithObjects:@"Anish", @"Kamal",@"Umang", nil];
    NSLog(@"\n\n1........................Creating Sets using NSSet class and initialise object with setWithObjects........................");
    NSLog(@"%@", class_mates);
    NSLog(@"\n\n2........................Enumerating Sets using for loop with id.........................");
    for (id item in class_mates) {
        NSLog(@"%@", item);
    }
    NSLog(@"\n\n3........................Comparing Sets with two NSSet objects.........................");
    if ([class_mates isEqualToSet:cousins]) {
        NSLog(@"Both Set are equal");
    }
    else{
        NSLog(@"Both Set are diffrent");
    }
    NSLog(@"\n\n4........................NSSet object has Membership Checking using containsObject method.........................");
    if ([cousins containsObject:@"Kaushal"]) {
        NSLog(@"Kaushal Is in Set");
    }
    else{
        NSLog(@"Kaushal Is not in Set");
    }
    NSLog(@"\n\n5........................Filtering Sets which has first charecter is starting from 'K'........................");
    for (id item in class_mates) {
        if ([item hasPrefix:@"A"]) {
            NSLog(@"%@", item);
        }
    }
    NSLog(@"\n\n6........................NSSet object Combining Sets using setByAddingObjectsFromSet.........................");   
    NSSet *frnd= [class_mates setByAddingObjectsFromSet:cousins ];
    NSLog(@"%@", frnd);
}


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