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 ).             
Post a Comment
Read more

Java Collection Framework Most Important Questions

  Java Collection Framework Most Important Questions   Q:-1   What is Collection Framework ? A:-     Collection framework is a unified architecture or predefined java classes and interfaces that is used for implementing  a group          of objects in java. Q:-2   What is Collection ? A:-     A collection represents a group of objects. And it is root interface of java collection hierarchy. Q:-3   What is Collections ? A:-     Collections is a utility class in java which is present is java.util package for manipulating  data. It provides static method for             searching, sorting and more. Q:-4   What is difference between Array and Collection ? A:-                 Array       ...
Post a Comment
Read more