Join the Objective-C Track
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Join the Objective-C Track
Track mentors

4 Mentors

Our mentors are friendly, experienced Objective-C developers who will help teach you new techniques and tricks.
Track students

922 Students

Join hundreds of students who have enjoyed learning and improving their skills by taking this track.
Track exercises

51 Exercises

Hundreds of hours have gone into making these exercises fun, useful, and challenging to help you enjoy learning.

About Objective-C

@interface HelloWorld : NSObject
- (NSString *)hello:(NSString *)name;

@implementation HelloWorld
- (NSString *)hello:(NSString *)name {
  if (!name) { name = @"World"; }
  return [NSString stringWithFormat:@"Hello, %@!", name];

Objective-C is a thin layer on top of C, and is a "strict superset" of C, meaning that it is possible to compile any C program with an Objective-C compiler, and to freely include C language code within an Objective-C class. Objective-C derives its object syntax from Smalltalk. All of the syntax for non-object-oriented operations (including primitive variables, pre-processing, expressions, function declarations, and function calls) is identical to that of C, while the syntax for object-oriented features is an implementation of Smalltalk-style messaging.

You can find more information about the language and its history here.

Join the Objective-C track

Exercism is a great website

The reviews are incredibly helpful because they help me see things that I missed, learn about new ways and sometimes interesting discussions that can add a fun twist to maybe a simple problem.

Relaxed. Encouraging. Supportive.

Meet the Objective-C Track mentors

Once you join the Objective-C language track, you will receive support and feedback from our team of mentors. Here are the bios of a few of the mentors of this track.

Avatar of Farhan Ahmed

Farhan Ahmed https://github.com/insha

I have been using Objective-C for almost 15 years. It still is a good language and until about 2014 it was the sole point of entry to officially develop for Apple's platforms. My overall software design experience extends to a little over 2 decades in multiple industries including health care, fintech, and logistics.
Avatar of Andrea Sessa

Andrea Sessa https://github.com/Sessa93

I use Objective-C everyday. Sometimes it is weird, but I have learnt to love it.
Avatar of Clement Rousselle

Clement Rousselle https://github.com/crousselle

I've been coding in Objective-C ever since the first release of the iOS SDK, back in the old manual memory management days! It's been a fun ride and I'm excited to share and help people to write great apps!
Avatar of Seyed Mojtaba Hosseini Zeidabadi

Seyed Mojtaba Hosseini Zeidabadi https://github.com/MojtabaHs

Senior Developer Technical Lead ♛ iOS Programming Instructor ♛ UI/UX Designer ✔ More: https://www.linkedin.com/in/mojtabahosseini/
Fun. Challenging. Interesting

Community-sourced Objective-C exercises

These are a few of the 51 exercises on the Objective-C track. You can see all the exercises here.

Secret Handshake
bitwise operations
Atbash Cipher

Get started with the Objective-C track. As with everything on Exercism, it's 100% free!

Join the Objective-C Track