Java Magazine Nov – Dec 2016

Here’s the Java magazine Nov – Dec 2016. The focus on this magazine is JUnit 5. It Covers the Following Topics: What topics does Java Magazine Nov – Dec 2016 cover A look at how NetBeans is moving away from Oracle to Apache Software Foundation. An interview with the creator of JUnit 5 – Kent … Read more

AWS VPC Tutorial Part III Elastic IP and NAT

In this AWS VPC Tutorial, we will learn how to create an Elastic IP address, a NAT Gateway, and accessing the internet from private subnet using the NAT gateway. This is the third in the 3-series tutorial, the first tutorial introduced the key concepts and tutorial problem and the second tutorial looked at creating VPC, … Read more

AWS VPC Tutorial – Part I Introduction

In this AWS VPC tutorial, we will learn how to create a VPC; create public and private subnets that cover Multiple Availability zone; create CIDR blocks for each subnet; add Internet Gateways and NAT Gateways, and modify route table. AWS VPC Tutorial – Introduction to Concepts What is AWS VPC Amazon VPC is your own … Read more

Java Method Overloading and Conditions.

What is Java Method Overloading Java method Overloading is a feature where two methods in a class can have the same name provided they have different parameter lists. So if you have a class called ClassA, it can have two methods both named methodA, however, the two methods should take in different parameters. for example, … Read more

Amazon AWS VPC Introduction and Features

In this AWS VPC tutorial, we will see an introduction to AWS VPC. We will also look at some of the key features of Amazon VPC. What is AWS VPC? AWS VPC or Virtual Private Cloud is an Amazon service that allows you to create you own virtual network inside Amazon cloud and to use … Read more

What is Inheritance in Java

What is Inheritance in Java? Inheritance In java is a feature that allows a class to extend the functionality of another class by directly deriving from it. The derived class has access to all the public and protected variables and methods of the base class. Inheritance allows adding functionalities over and above those defined in … Read more

What is Abstraction in Java?

What is Abstraction in Object Oriented Programming? Abstraction in java is used to hide the complexity of a system by exposing the method signature of the system but concealing its implementation. Java implements abstraction using interface and abstract class and so it would be easier to explain abstraction by explaining what interfaces and abstract classes … Read more

What is Object Oriented Programming?

What is Object Oriented Programming (OOP)? Object Oriented programming is a programming paradigm wherein all information is stored within the object and all ‘actions’ are performed by the objects. In the first tutorial, we explained the concept of Objects and classes. We defined “class” as a template that stores information about the state(customer’s name, address … Read more

Polymorphism in Java

What is polymorphism in Java? Polymorphism in Java is the principle by which an object can have multiple forms but each form conforms to a contract. Polymorphism can be thought of as a direct consequence of abstraction. In the earlier section, we say how abstraction separates method definition from its implementation. When we have two … Read more