Objective-C Practice Exam

Objective-C Practice Exam

About the Objective-C Exam

The Objective-C Exam is designed to assess a candidate's proficiency in using Objective-C, a powerful programming language primarily used for developing applications on Apple's iOS and macOS platforms. This exam covers core concepts, syntax, and advanced features of Objective-C, providing a comprehensive evaluation of a candidate's ability to design, implement, and maintain software using this language.

Who should take the Exam?

This exam is ideal for:

• Software developers and engineers working on iOS or macOS application development.
• Programmers transitioning from other languages to Objective-C.
• Technical leads and architects involved in planning and executing Objective-C based projects.
• Individuals seeking to enhance their skills and credentials in Objective-C programming.

Skills Required

• Understanding of Objective-C syntax and programming constructs.
• Ability to design and implement object-oriented solutions using Objective-C.
• Proficiency in memory management and error handling in Objective-C.
• Knowledge of the Cocoa and Cocoa Touch frameworks and their integration with Objective-C.

Knowledge Gained

By taking the Objective-C Exam, candidates will gain comprehensive knowledge in the following areas:

• Comprehensive understanding of Objective-C programming concepts and best practices.
• Skills in writing efficient and maintainable Objective-C code for iOS and macOS applications.
• Expertise in using Objective-C's object-oriented features, including classes, methods, and protocols.
• Knowledge of integrating Objective-C with the Cocoa and Cocoa Touch frameworks for application development.

Course Outline

The Objective-C Exam covers the following topics - 

Introduction to Objective-C

• Overview of Objective-C: history, features, and use cases.
• Comparison with other programming languages: C, C++, Swift.
• Objective-C runtime and its role in iOS and macOS development.

Objective-C Syntax and Basics

• Basic syntax: variables, data types, operators, and control structures.
• Functions and methods: defining, calling, and using.
• Preprocessor directives and macros in Objective-C.

Object-Oriented Programming in Objective-C

• Classes and objects: definition, instantiation, and manipulation.
• Inheritance, encapsulation, and polymorphism in Objective-C.
• Properties, instance variables, and methods.

Memory Management

• Understanding Objective-C memory management principles: retain, release, and autorelease.
• Automatic Reference Counting (ARC) and its impact on memory management.
• Best practices for managing memory and avoiding leaks.

Error Handling and Exception Management

• Techniques for error handling in Objective-C: NSError, exceptions, and assertions.
• Implementing error-checking mechanisms and handling runtime exceptions.
• Best practices for robust error handling and debugging.

Protocols and Delegates

• Understanding protocols: definition, declaration, and implementation.
• Using delegates for communication between objects.
• Protocols in Cocoa and Cocoa Touch frameworks.

Cocoa and Cocoa Touch Frameworks

• Overview of Cocoa (macOS) and Cocoa Touch (iOS) frameworks.
• Integrating Objective-C with UIKit, AppKit, Foundation, and other framework components.
• Implementing common functionalities: user interfaces, data handling, and networking.

Advanced Objective-C Features

• Categories and extensions: adding methods and properties to existing classes.
• Runtime programming: introspection, method swizzling, and dynamic class loading.
• Using blocks and Grand Central Dispatch (GCD) for concurrency.