linked list

  Introduction What is Inheritance? The ability of a class to use the properties and characteristics of another class is called as inheritance. Basically,In inheritance two types of classes are involved Superclass and subclass, Subclass : The class which uses the properties and characteristics of other class is called a subclass. Superclass : The class whose properties and characteristics are used by other classes is called a superclass. extends keyword is used in java for performing inheritance . Syntax :   class BaseClass_Name   {  //methods and fields of BaseClass }                                              class SubClass_Name extends BaseClass_Name {  //Methods and fields of SubClass } Why use inheritance ?          The most important use of inheritance is code reusability, we can reuse the code (methods and fields) written in super class by using base class as well. Method overriding  is also called as a runtime polymorphism