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Abstract Classes in Java
In Java, abstract classes are a fundamental concept in Object-Oriented Programming (OOP) that provides a foundation for creating flexible and reusable code. This tutorial explores the concept of abstract classes, their characteristics, and how to implement them effectively. To further explore Object-Oriented Programming concepts, check out our comprehensive OOP guide.
What is an Abstract Class?
An abstract class is a class that cannot be instantiated (object creation) on its own. It is designed to act as a base class, providing common behavior that can be shared by multiple subclasses while allowing subclasses to define specific implementations.
Key Characteristics of Abstract Classes:
Declared with the abstract keyword.
Can contain:
- Abstract methods: Methods without a body (implementation).
- Concrete methods: Methods with a body (implementation).
Allows fields (variables), constructors, and static methods.
Subclasses of an abstract class must implement all its abstract methods unless the subclass is also abstract.
