abstract class in java with example

Should a subclass derived from an abstract class be abstract?
If a class defines one or more abstract methods, then the class itself must be declared abstract A subclass derived from an abstract class must either implement all the base class’s abstract methods or be abstract itself To better understand these concepts, we’ll create a simple example.
What is abstract keyword in Java?
The abstract keyword is a non-access modifier, used for classes and methods: Abstract class: is a restricted class that cannot be used to create objects (to access it, it must be inherited from another class). Abstract method: can only be used in an abstract class, and it does not have a body. The body is provided by the subclass (inherited from).
How to implement features of an abstract class?
To implement features of an abstract class, we inherit subclasses from it and create objects of the subclass. A subclass must override all abstract methods of an abstract class. However, if the subclass is declared abstract, it's not mandatory to override abstract methods.
What is an example of an abstract class in Java?
For example, An abstract class can have both the regular methods and abstract methods. For example, To know about the non-abstract methods, visit Java methods. Here, we will learn about abstract methods. A method that doesn't have its body is known as an abstract method.

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