Learn Objective-c - 10 Code Examples & CST Typing Practice Test
Objective-C is a general-purpose, object-oriented programming language that adds Smalltalk-style messaging to C. It has been the primary language for macOS and iOS development before Swift, enabling developers to create applications for Apple platforms with dynamic runtime capabilities.
View all 10 Objective-c code examples →
Learn OBJECTIVE-C with Real Code Examples
Updated Nov 21, 2025
Learning Path
Learn C fundamentals
Understand object-oriented concepts in Objective-C
Practice message sending and method calls
Explore Cocoa/Cocoa Touch frameworks
Build and test simple iOS/macOS apps
Skill Improvement Plan
Week 1: C basics and Objective-C syntax
Week 2: Classes, methods, and memory management
Week 3: Delegates, protocols, and categories
Week 4: Framework integration (UIKit, AppKit)
Week 5: Building and debugging full apps
Interview Questions
What is Objective-C and how does it differ from C?
Explain the dynamic messaging system in Objective-C.
What are categories and protocols?
How does ARC work for memory management?
How do you integrate Objective-C with Swift?
Cheat Sheet
@interface / @implementation - class declaration
@property - declare class properties
@protocol - define interfaces
[object method] - send message
ARC - automatic memory management
Books
Programming in Objective-C by Stephen Kochan
Objective-C Programming: The Big Nerd Ranch Guide
Effective Objective-C 2.0
Learning Objective-C 2.0
Cocoa Programming for Mac OS X
Tutorials
Objective-C syntax and basic constructs
Object-oriented programming in Objective-C
Memory management and ARC
Using Cocoa/Cocoa Touch frameworks
Building simple iOS/macOS applications
Official Docs
Apple Developer Objective-C documentation
Cocoa and Cocoa Touch framework references
Clang/LLVM Objective-C compiler docs
Community Links
Apple Developer Forums
Stack Overflow Objective-C tag
GitHub Objective-C projects
CocoaPods library community
Legacy iOS/macOS developer forums
Community Support
Apple Developer Forums
Stack Overflow Objective-C tag
CocoaPods and GitHub repositories
Legacy iOS/macOS developer communities
Documentation on Apple Developer website
Frequently Asked Questions about Objective-c
What is Objective-c?
Objective-C is a general-purpose, object-oriented programming language that adds Smalltalk-style messaging to C. It has been the primary language for macOS and iOS development before Swift, enabling developers to create applications for Apple platforms with dynamic runtime capabilities.
What are the primary use cases for Objective-c?
macOS and iOS application development. Legacy Apple framework integration. Developing Cocoa and Cocoa Touch applications. Creating reusable Objective-C libraries. High-performance system-level Apple apps
What are the strengths of Objective-c?
Stable and mature language with long Apple ecosystem support. Full access to low-level C performance and system APIs. Dynamic runtime enables flexible behaviors. Large codebase of libraries and frameworks. Still supported in Xcode for iOS/macOS development
What are the limitations of Objective-c?
Verbosity and less readable syntax compared to modern Swift. Steeper learning curve for newcomers. Manual memory management pre-ARC can be error-prone. Slower adoption of modern language features. Declining community focus compared to Swift
How can I practice Objective-c typing speed?
CodeSpeedTest offers 10+ real Objective-c code examples for typing practice. You can measure your WPM, track accuracy, and improve your coding speed with guided exercises.