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The importance of inheritance in object oriented programming?


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2009-05-16 12:26:14
2009-05-16 12:26:14

Inheritance is an object oriented feature supported by Java wherein the features of one Java class can be inherited/made available in another class. This creates a parent child relationship between these 2 classes. Class Inheritance in java mechanism is used to build new classes from existing classes. The inheritance relationship is transitive: if class x extends class y, then a class z, which extends class x, will also inherit from class y. Object-oriented programming allows classes to inherit commonly used state and behavior from other classes.


public class Parent {

private String name = "Rocky";

public String getName(){




public class Child extends Parent {

public static void main(String[] args){

System.out.println("Name in Parent is: " + getName());



Here the getName() method is available only in the parent class but is directly used in the child class because the method is public and is directly accessible to the child class since it has extended the parent class.

Benefits of Inheritance:

One of the key benefits of inheritance is to minimise the amount of duplicate code in an application by sharing common code amongst several subclasses. Where equivalent code exists in two related classes, the hierarchy can usually be refactored to move the common code up to a mutual superclass. This also tends to result in a better organisation of code and smaller, simpler compilation units.

Inheritance can also make application code more flexible to change because classes that inherit from a common superclass can be used interchangeably. If the return type of a method is superclass


Related Questions

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You don't. Inheritance is a feature of object oriented programming languages. C is not object oriented.

An object oriented programming approach is one in which we use the various object oriented concepts like inheritance, polymorphism, encapsulation, abstraction etc.

Object oriented programming languages must support the four fundamentals of object-oriented programming: encapsulation, abstraction, inheritance and polymorphism.

Java is called an object oriented programming language because it implements many of the object oriented programming concepts like abstraction, encapsulation, inheritance etc.

No, Java is a object oriented programming not a pure object oriented programming Bcoz java does not support multiple is object oriented programming bcoz its implement the basic object oriented concepts like inheritace,polimophism, abstraction etc except multiple inheritance.For any query or suggestion plz mail

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Inheritance is a key feature of object oriented programming because:It promotes code reuseIt avoids code redundancyJava allows us to use Inheritance extensively in our programs.

Encapsulation, Polymorphism, and Inheritance.

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Encapsulation, Inheritance, and Polymorphism

Inheritance, Abstraction, Polymorphism & Encapsulation.

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Because it implements object oriented programming concepts like inheritance, polymorphism, encapsulation, abstraction, polymorphism etc etc.

JAVA is an Object Based Programming Language. it doesn't provide multiple inheritance and operator overloading. while Object Oriented Lanuages provides both.

Encapsulation, data hiding, inheritance and polymorphism.

Inheritance Encapsulation Polymorphism Abstraction

Encapsulation, inheritance, polymorphism and abstraction.

Encapsulation is one of the four pillars of object-oriented programming. The other three are inheritance, polymorphism and abstraction.

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You do not need object oriented programming. Anything that can be programmed in an object oriented programming language can be programmed in C.

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