Gain insights into programming fundamentals and language evolution. Learn about code basics, variables, conditional statements, loops, functions, and error handling.

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Programming is the art and science of writing instructions that a computer can follow to accomplish a task. This course will teach you the concepts you need to know to become a computer programmer.

You’ll learn about the brief history of programming, what constitutes a computer program, and the evolution of programming languages, including the various types of applications currently being developed. Next, you’ll learn how to organize the code using modules, namespaces, and packages. You’ll then learn about the basic building blocks of a computer program and cover variable declaration and initialization, along with primitive data types. Next, you’ll cover how to change the program flow using conditional statements and learn how to use loops. You’ll finish by learning how to create functions and handle errors using exceptions.

By the end of this course, you will have a solid understanding of how computer programming works, and be well equipped to learn any programming language you want.

Computer Programming for Absolute Beginners

# Object-oriented programming

In the 90s, another paradigm gained popularity and is still one of the essential paradigms in use. It is called object-oriented programming. Let's see what this is about.

The main idea within **object-oriented programming** is to model the code in the same way that people (humans) look at the world.
We are always classifying things and grouping things together using abstraction. We can talk about vehicles, and we have shared knowledge of what is included in this group. Cars, bicycles, boats, and airplanes are included, while pencils, ducks, and swimsuits are not.

For example, a friend could say to us, "I need to go to town. Can anyone lend me a vehicle?"


We'd probably interpret this in such a way that the actual kind of vehicle does not matter, but it must be something that can transport our friend to town. It could just as well be a car as it could be a skateboard.

Grouping things into these abstractions makes our lives easier because we won't go into details every single time we talk about something. We can ask for a vehicle instead of describing that we need a device that can transport us from our current location to town.

Things within such an abstraction can be very different, but if they share some key characteristics, we will understand it. Take a look at the following image. Here, we have two items that can both be grouped into something that qualifies as remote control.

One of them will control our TV and let us change channels and change the volume. The other one will let us lock and unlock our car:

Explore the core concepts of object-oriented programming, focusing on how it models code by grouping related items using abstraction. Understand how this paradigm simplifies software design by representing real-world entities and their shared characteristics.

Understanding Object-Oriented Programming

Object-oriented programming