Why Java Developers MUST choose notepad for the initial step. As software engineers, we must aware of the syntax. The story begins like this. As a fresher, I joined the software company. They asked me to join as a java developer. Then they recommended reading the Head First Java book. While…

Let begin with this what is HTTP? It is a Hypertext transfer protocol everyone know about that. Before talking about HTTP we must be aware of the OSI model. What is the OSI model? The Open Systems Interconnection (OSI) model describes seven layers that computer systems use to communicate over…

Memento is a behavioural design pattern that lets you capture the object’s internal state without exposing its internal structure, o that the object can be returned to this state later. The memento design pattern has three states Memento Originator and Caretaker. Originator is the one we need to maintain the…

The chain of responsibility is under the Behavioral Design pattern category. With the Chain of responsibility, you can control the user level. AS a definition we can say that a design pattern that forms a sequentially connected component that looks like a chain. And it helps the consumers to pass…

Builder design patterns are part of the creational design patterns, this will be helpful when you create an object. As an example:- Think when your program has multiple variables, so you need to set values using constructors or using setters. Take this program is taking parametrize constrictor to pass the…

This is my third article in Design patterns. In this article, we are going to talk about the Prototype design patterns. When you want to create an object you can use the Factory design pattern. In this design pattern, we don’t create new Objects instead of that clone an existing…

As we previously talked about this also belong to the Creational design patterns. The factory design pattern says that define an interface (A java interface or an abstract class) and let the subclasses decide which object to instantiate. Uses of Factory design Patterns Duplicate your client from the concrete classes…

A lot of the time, programmers know about how to do programming but they do not know the design pattern patterns. They think programming is about the OOP, simple SQL and simple API knowledge. Because I also had the same kind of knowledge. …

What is JVM? JVM is converting bytecode into machine code. I know all of the developers reply to that question like this. To answer that question you have to know what is virtual machine is? First, we have to know what is virtual: — Virtual is there is something that…