Thread: OOPS Concept - Inheritance

Inheritance is the OOPS features:

Inheritance means re-usability.for example

son re-use his father sir name like father name is ranbir singh and son name is karan singh . so there is singh is a sir name.
in java, there are three types of inheritance are supported, which are
1) single inheritance
2) multi-level inheritance
3) hierarchical inheritance

in java multiple inheritance are not supported through class bu it is possible through interface in java

Did you have a specific question, perhaps regarding inheritance?

The interface in java is a mechanism to achieve abstraction. There can be only abstract methods in the java interface not method body. It is used to achieve abstraction and multiple inheritance in Java. By interface, we can support the functionality of multiple inheritance.

Back again. Thanks. This program is a lot of fun. The data you're talking about are at statically typed at compile time and known as reference type or objects. And runs on any platform. eg. Windows OS or Unix.

You can say partially this, but not fully as interface is having only abstract methods. Without interface you can directly write class and put your methods over there. Interface is designed for different purpose that is for specification design and all JAVA EE is based on interface specification like JDBC, Servlets, JSP, EJB all are interface and their implementations are provided by vendors like IBM, JBoss etc. It is wrong to say that interface in java is used for multiple inheritance only.

Thanks,
Binayak Nanda

Inheritance is an important pillar of OOP(Object Oriented Programming). It is the mechanism in java by which one class is allow to inherit the features(fields and methods) of another class.
Important terminology:

Super Class: The class whose features are inherited is known as super class(or a base class or a parent class).
Sub Class: The class that inherits the other class is known as sub class(or a derived class, extended class, or child class). The subclass can add its own fields and methods in addition to the superclass fields and methods.
Reusability: Inheritance supports the concept of “reusability”, i.e. when we want to create a new class and there is already a class that includes some of the code that we want, we can derive our new class from the existing class. By doing this, we are reusing the fields and methods of the existing class.

Inheritance is a key concept in the world of OOPs. Inheritance is one of the core concepts of object-oriented programming languages. It is a mechanism where you can to derive a class from another class for a hierarchy of classes that share a set of attributes and methods. Inheritance. In object-oriented programming, inheritance enables new objects to take on the properties of existing objects. A class that is used as the basis for inheritance is called a superclass or base class.

This is a robust language. I have yet to master all the key concepts. Though I am learning it on windows, it is hard sometimes to see that it is not windows, but another programming language.

inheritance is a property in which the derived class inherits the property of the base class. Suppose class A is a parent class and class B is its derived class then class B will inherit the properties of class A, like which inherits some properties of our parents. This is the main concept of inheritance.
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Inheritance is a procedure of acquiring all the properties and behaviour of a parent class into child class. Inheritance represents “IS-A” relationship between super class and subclass. By inheriting we are reusing all the methods, properties and behavior of super class.
Syntax:

class SubClass extends SuperClass
{
// variables and methods
}

Types of inheritance in java - There are five types of inheritance in java single, multilevel, hierarchical, multiple and hybrid inheritance out of which three are supported in java.

Thank you. Once again, too sharp. Reference type or objects. Got what I was looking for. Thanks! We're both operating on the same platform. So okay too.