![]() ![]() In short, it's essential to have a good understanding of OOP basics, OOP design principles, and OOP patterns to write a robust program to solve real-world problems. That's where the definition that "A class is a blueprint for creating objects" starts making sense. If you think about how Udemy should store courses, search them, and recommend them to a user, and if you have to implement a similar solution, how would you do that? That's where you start thinking about the Course as a class and each Course an instance of that Course. For example, consider Udemy, one of the popular online courses platform. This is something you learn on the job, where you need to solve a real-world problem. That's why many programmers end up knowing how to declare a class or instantiate an object rather than understanding the purpose of quality and objective and how to design one. Still, at that time, our focus primarily remains on programming language rather than genuinely understanding OOP concepts. Most of us learned object-oriented programming while learning a programming language, like, learning Java or Python. Some of the most popular programming languages are object-oriented, like Java, Python, PHP, and JavaScript, all supported object-oriented programming. Even though several programming paradigms, like procedural and functional, most of the code we write today is object-oriented. It makes representing a real-world thing in the programming world smoother and will enable you to manage the complexity of your program. ![]() The OOP or Object Oriented Programming paradigm allows you to write a program by modeling real-world things in terms of class and object.
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