Inheritance is essential since it focuses on reusability of code.The ‘extend’ keyword is used by the subclass for inheriting the features of the superclass.The parent class is defined as the superclass and the inherited class is known as the superclass.In Java, when an ‘I-A’ relationship occurs between the two classes we use inheritance.For instance, all the protected and public members of class A are inherited into the class D, first through class B and another through class C. It is just a combination of single and multiple inheritances. For instance, class C extends both class A and class B respectively. Hence, Java is not able to support multiple inheritances. In the concept of multiple inheritances, one class extends more than one class. For instance, class A, B, and C inherit the same class D. In this concept of hierarchical inheritance, one class is inherited by many subclasses. For instance, class C is considered as the subclass of B and B is the subclass of class A. Thus, the derived class becomes the base class for the new class. In this, one class can access and inherit properties from the derived class. This way class A is known as a superclass and class B is known as the subclass. In such a way, Class B extends only class A. It simply means that class A extends to class B. In the concept of single inheritance, one class provides an extension to another class (only one class). Now if you are clear with the meaning and concept of inheritance, let us move ahead to the types of inheritance. Thus, inheritance provides the reusability feature and is an essential property of OOPs.Įxample: class Parentclass extends Childclass With the inheritance concept, we can just reuse the methods and properties of the existing class. For instance, the kid inherits or gains the features, manners, and characteristics of his/her parents. Inheritance is the procedure in which one class access the properties of another class known as a subclass. Let us start with understanding the concept of inheritance. First, the question comes in our mind, what is inheritance? Thus, this article will show you the definition of inheritance, its meanings, and its types.
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