Java с нуля. Полиморфизм | Уроки по программированию

In this lesson, we'll continue exploring the fundamentals of OOP and explore polymorphism. We'll see what polymorphism is in Java and how it's achieved. We'll also see what problems it solves using the example from the previous lesson. We'll only consider subtype polymorphism, but there are other types of polymorphism. When we get to generics, we'll also look at parametric polymorphism. Polymorphism in object-oriented programming (OOP) is the ability of objects with the same interface to behave differently depending on their specific type. Simply put, the same method can work differently for different classes. 🔑 Key ideas: One interface, many implementations. Allows you to call the same methods on objects of different classes without knowing their specific type. Promotes code flexibility and extensibility. 📚 Types of polymorphism: Parametric polymorphism – working with objects of different types using generics. Example: Universal Collections in Java or C#. Ad-hoc polymorphism – the use of method and operator overloading. Example: overloading the + operator for strings and numbers. Subtype polymorphism (inheritance) – the ability to use subclass objects instead of superclass objects. Example: overriding methods in child classes. 🚀 Do you want to not only understand Java theory but also master it in practice? Then subscribe to Boosty, where I post walkthroughs of practical tasks that will help you: ✅ Reinforce your knowledge with real-world examples ✅ Deepen your understanding of how code works ✅ Prepare for interviews and real-world development 👉 https://boosty.to/fonatik_kabal ► Boosty: https://boosty.to/fonatik_kabal ► TenChat: https://tenchat.ru/fonatik_kabal ► Telegram channel: https://t.me/java_kabala ► Instagram:   / fonatik_kabal   ► TikTok:   / fonatik_kabal   ► LinkedIn:   / dmitrii-kanaev-538698154