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 ...

We can not run the interface Java class but we can run abstract class in it contains the main() method. Note: According the Java7 specification the main difference between abstract class and interface ...

In this article, you will learn what are the differences between Factory and Abstract Factory design patterns in Java, and when to ... only depends on the Shape interface, not the concrete classes ...

Just like Abstract Classes, Interfaces can't be instantiated but they can have still have Object References which will refer to objects of implementing classes. A major difference between Java ...

The main differences between JVM, JRE and JDK are listed below, JVM: Java Virtual Machine(JVM ... where everything should be an object. The abstract class contains abstract and non-abstract methods ...