Procedure
1. Create NSManagedObjectContext Object
AppDelegate *app=[[UIApplication sharedApplication]delegate];
NSManagedObjectContext *Obj=[app managedObjectContext];
2. Create NSManagedObjectModel object using NSManagedObjectContext
NSManagedObjectModel *newContact= [NSEntityDescription
insertNewObjectForEntityForName:@"Stations"
inManagedObjectContext:Obj];
[newContact setValue:@"Value1" forKey:@"name"];
[newContact setValue:@"value2" forKey:@"zipcode"];
3. Create Object for Error
NSError *error;
4. Save NSManagedObjectContext
[Obj save:&error];

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