Skip to main content

Java Inheritance


#Java Inheritance Interview Questions  




  #inheritance | #multilelelinheritance | #single inheritance | #javainheritance | #oppsinheritance |     #java | #OOps | #corejava | #corejavainheritance | #java inheritance | #coreinheritance |   #oopjavainheritance 


1: What is inheritance?  

A: Inheritance is the most important feature in any object-oriented programming language, This is a                child-parent relationship that allows as to reuse the same logic or same code in a specific manner.  


2: How many types of inheritance are supported by java?

A:  4 types of inheritance are supported by java,

          Single-Level, Multi-Level, Hierarchical, Multiple.

Note: In java multiple inheritance, we can achive through Interface.




                                                               Single Level inheritance



Multi-Level inheritance




Hierarchical inheritance




Comments

Post a Comment

Popular posts from this blog

Spring Boot Interview Questions

  S pring Boot Interview Questions     image source - google 1: What is spring boot? A: Spring boot is a project that is created on the spring framework by pivotal people to create minimum configuration and production ready application. 2: What is the current and latest version of spring boot? A: 2.2.1 3: What @Autowired annotation does in spring boot and spring framework? A:  @Autowired annotation tells spring to inject the dependency of this bean to this class. we can use this annotation in both setter and constructor dependency injection  4: How to create a Spring boot project? A: Their are 2 way's to create spring boot project. first one is using spring official  site Spring Initiliazr and the other one is using IDE ( spring tool shuit or Intellij ).             

most importent core java interview questions and answers

   Most Important Core  Java Interview Questions &  Answers for fresher and experience both 1. What is java? A. java is object oriented programing language which is invented by james gosling in 1995. first version of java is called oak but after that its name was changed with java. 2. What are the features of java? A. There are some features of java :    (a) Platform independent.   (b) Object Oriented Programming Language.   (c) Strongly-typed Programming Language.   (d) Interpreted and Compiled Language.   (e) Automatic Memory Management. 3.What is mean by  Platform independent ? A. Java is plateform independent because java uses JVM ( java virtual machine for run the      bytecode wich is generated by java compiler ) and JVM is plateform dependent so every     java code after compilation it ganerates bytecode wich is pateform independ...

Basic Core Java Interview Questions | Core java | Java Questions | Core Basics | Interview Questions | Java Questions | Core Java Basics | OOP in java | Object oriented programming | Object oriented programming in java

Basic Core Java Interview Questions | Core java | Java Questions | Core Basics | Interview Questions | Java Questions | Core Java Basics | OOP in java | Object oriented programming | Object oriented programming in java 1. What is OOP? A. OOP extends for Object oriented programming. It is a paradigm of programming which works on object. In object oriented programming everything is in the form of          object. In java except primitives everything in the form of object. For converting primitives to object we can use wrapper classes concept in java. 2. What is Abstraction? A. Abstraction is nothing but hiding the internal implementation and showing some set of services to the end user is called abstraction. 3. How can we use abstraction in java? A. We can use abstraction in java with the help of Interface and Abstract class. 4. What is Abstract class? A. Abstract class is special type of class which is declared by abstract keyword and used to achieve abstraction....