If a class contain any abstract method then the class is declared as abstract class. An abstract class is never instantiated. It is used to provide abstraction. Although it does not provide… Read More

1.What is abstract class in java?Hiding the implementation  and showing the function definition to the user. Abstract class contains abstract methods and concrete methods(normal methods… Read More

1. Introduction In this article, we will depict Java Abstract Factory Design Pattern in detail. The Abstract configuration design, as its name proposes, is by all accounts an abstract class… Read More

If a class contain any abstract method then the class is declared as abstract class. An abstract class is never instantiated. It is used to provide abstraction. Although it does not provide… Read More

Java 9 Tutorial using Hands-on, Step By Step Approach. Learn Object Oriented Programming with 200+ code examples.We love Programming. Our aim with this course is to create a love for Program… Read More

If you are curious about EnumMap and EnumSet classes in java collections framework then this article is for you. Questions related to the EnumMap and EnumSet are generally not asked in the j… Read More

Java 8 introduced default methods in interfaces. This post describes what they are, and how they can change the design of APIs. A nominal design Earlier, in Java, interfaces could… Read More