Class implementation using get method, Objective-C

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#import <Foundation/Foundation.h>

@interface Student:NSObject
{
    NSString *name;
    long mno;
    NSString *email;
    int enroll;
    int avg_mark;
}

@end

@implementation Student

-(id)init
{
   self = [super init];
   mno = 8866839755;
   name = @"Student Name";
   email = @"parthganatra97@gmail.com";
   enroll = 22;
   avg_mark=100;
   return self;
}

-(long) get_moblie_number
{
   return mno;
}

-(NSString*) get_name
{
   return name;
}
-(int*) get_enroll
{
   return enroll;
}
-(NSString*) get_email
{
   return email;
}
-(int*) get_mark
{
   return avg_mark;
}

@end

int main( )
{
   
   Student *s1 = [[Student alloc]init];    // Create student object
   //long rollno = [s1 get_moblie_number];
   NSString *name = [s1 get_name];
    //age = [s1 getage];
    
   NSLog(@"Student Mobile No : %ld", [s1 get_moblie_number]);
   NSLog(@"Student Name : %@", [s1 get_name]);
   NSLog(@"Student Enrollment No : %d", [s1 get_enroll]);
   NSLog(@"Student Email : %@", [s1 get_email]);
   NSLog(@"Student Average Mark No : %d", [s1 get_mark]);
  
  
   return 0;
}

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Compilation time: 0.22 sec, absolute running time: 0.14 sec, cpu time: 0.03 sec, memory peak: 9 Mb, absolute service time: 0,37 sec