Abstraction in Java
Explore the concept of abstraction in Java by learning how to use abstract classes and methods. Understand how abstraction hides unnecessary details, allowing you to create flexible and well-structured programs. This lesson guides you through defining abstract classes, implementing abstract methods in subclasses, and the importance of abstraction in object-oriented programming.
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What is abstraction?
Showing only essential information and hiding unnecessary information is called abstraction. For example, when we use a cell phone, all we are seeing is the screen. We don’t need to know what’s happening behind the screen.
Abstract class
An abstract class is a class that declares one or more abstract methods. Such a class can have abstract methods as well as concrete (normal) methods, whereas a normal class cannot have any ...