Abstract classes and interfaces in Java serve fundamentally different purposes. Learn the differences between these Java language elements and how to use them in your programs. Abstract classes ...

To create abstract classes we use the 'abstract' keyword whereas keyword 'interface' is used to make the interfaces in Java. For inheritance the 'extends' keyword is used by the subclasses whereas ...

Animal a= new Labrador(); // created object of Labrador class and assigned it to Animal interface a.sound(); // called sound method of Animal interface a.eat(); // called eat method of Animal ...

Methods in interface are by default abstract and public, java 8 can have body to the methods. Abstract class can have both abstract and non-abstract methods. To be used needs to use extends keyword.

In this Java tip, you’ll learn three common ways to use nesting techniques with Java interfaces ... Each class could be designed with duplicate address fields, or you might abstract these ...

Java 8 came with the enhanced functionality to the Interfaces. Prior to Java 8, interfaces were contracted only with the abstract ... We want to use the default one of Alpha then we can have the ...