Why super class is used in Java?

The super keyword in Java is a reference variable which is used to refer immediate parent class object . Whenever you create the instance of subclass, an instance of parent class is created implicitly which is referred by super reference variable. 1. super can be used to refer immediate parent class instance variable.

Read more

What is superclass with example?

A superclass is the class from which many subclasses can be created . The subclasses inherit the characteristics of a superclass. The superclass is also known as the parent class or base class. In the above example, Vehicle is the Superclass and its subclasses are Car, Truck and Motorcycle.

Read more

What is extends in Java with example?

The extends keyword extends a class (indicates that a class is inherited from another class) . In Java, it is possible to inherit attributes and methods from one class to another. We group the “inheritance concept” into two categories: subclass (child) – the class that inherits from another class.

Read more