Superclass: Animal package com.journaldev. Let’s see how to implement inheritance in java with a simple example. So Object class is at the top level of inheritance hierarchy in java. Java Inheritance ExampleĮvery class in java implicitly extends class. Inheritance is widely used in java applications, for example extending the Exception class to create an application-specific Exception class that contains more information such as error codes. The Vehicle becomes the superclass of both Car and Sedan. Edit, use code completions provided by the system, open tests, run and debug them. Wait for the Apache NetBeans Language Server extension to be initialized (shows Indexing finished in the status line). Java Inheritance is transitive - so if Sedan extends Car and Car extends Vehicle, then Sedan is also inherited from the Vehicle class. Then open the suite in code as a folder (File/Open Folder). Inheritance in Java is the method to create a hierarchy between classes by inheriting from other classes. Inheritance in Java is implemented using extends keyword. Java Inheritance is used when we have is-a relationship between objects. Inheritance in java is one of the core concepts of Object-Oriented Programming.