Free online courseObjective C programming

Course Description

Strengthen your foundation in Apple development by learning Objective-C from the ground up in a practical, beginner-friendly way. This free online course guides you from setting up your workspace in Xcode to writing real programs that compile, run, and evolve as your skills grow. If you want to understand how classic iOS and macOS codebases are built, or you are preparing to maintain legacy apps, Objective-C remains a valuable language to know.

You will start by getting comfortable with the tools and workflow on a Mac, including installing and launching Xcode and understanding how a basic program is organized. From there, you will learn how code communicates intent through clear structure and helpful comments, and how to work with essential data types so your programs can store and manipulate information accurately.

As you progress, you will gain confidence with the core logic used in app development: arithmetic and operators, comparisons, and decision-making with if, else, and else if. You will also practice controlling program flow using loops, including for, while, and do-while patterns, and learn how break and continue change execution. Along the way, you will see how user input can influence what your program does, making your code more interactive and realistic.

The course then brings you into an object-oriented mindset, introducing objects and methods in Objective-C and helping you understand how behavior and data work together. You will learn why getters and setters matter, how accessors can be generated, and how the dot syntax is used to set and retrieve values cleanly. By comparing instance variables with local variables, you will develop a clearer mental model for scope and state, which is crucial for debugging and building maintainable apps.

With short videos paired with quick checks and exercises, you can measure progress as you learn. Finish with a stronger grasp of Objective-C fundamentals, an improved ability to read and write code in Xcode, and skills you can apply to app maintenance, coursework, or your next step into iOS development.