Method Reference in Java 8 [::]

by devs5003 - March 20, 2024April 7, 20266

Method Reference is a wonderful feature introduced in Java 8. Apart from taking advantage of functional programming, one of the biggest advantages in using a Lambda expression is to minimize the lines of code. Similarly, Method Reference in Java 8 [::] also minimizes lines of code even more than Lambda. However, we use both of them in the presence of functional interfaces only. Moreover, It is also a concise and simpler form of lambda expression. In this article, we will also learn how to change a Lambda expression into a method reference. Let's start discussing about 'Method Reference in Java 8 [::]' and it's related concepts. What is Method Reference(::)? As we have seen in Lambda expression topic that we use lambda expressions

Improvements In Java Collection API

by devs5003 - March 10, 2024May 3, 20260

In this article "Improvements in Java Collection API" we will learn about the origin of classes in different versions of jdk. Also, If any new class or interface introduced, what was the purpose of introducing that? What was the weakness of previous version of it? Why the new class/interface introduced? What all new features introduced in Collection classes/interfaces? and so on. We are going to discuss about these kinds of questions in this article accordingly. In fact, we will learn about Enhancement of java collection classes step by step & also version by version simultaneously. Primarily, we will focus on Java collection features in JDK 1.0, 1.2, 1.4, 1.5, 1.6 and 1.8, 9 10, 11, 21 respectively. Improvements in Java Collection

Singleton Class In Java With Examples: A Comprehensive Guide

by devs5003 - February 13, 2024May 3, 20261

In this article, we will explore the concept of Singleton class in Java, with different implementation techniques, their advantages and disadvantages, and provide various code examples to demonstrate their utilization. In Java programming, the concept of Singleton class comes from the Singleton design pattern which is one of the most commonly used design patterns in Java. It comes under the category of creational design patterns and is used to ensure that a class has only one instance and provides a global point of access to that instance. What is a Singleton class in Java? A class that can have only one instance (object) at any given time during the runtime of an application. It provides a global point of access to this instance,

Static Keyword In Java With Examples and Best Practices

by devs5003 - February 8, 2024May 3, 20262

The understanding of static keyword in java is so important that we as a java programmer cannot imagine a single runnable program without a static keyword. If we want to run a small program, we must use either main() method (which is static) or a static variable/block till JDK 1.6. Even we don't have the static variable/block option to run the program starting JDK 1.7 onward. Therefore, we should know all about the static keyword and keep in mind the significance of 'Static in Java'. We as a Java developer can't leave the static keyword untouched. Hence, we should have a clear understanding of static in java mandatorily. Additionally, the static keyword in java is an important topic in the interview

Singleton Design Pattern in Java with all Scenarios

by devs5003 - February 1, 2024November 15, 20259

In this article, we will go through all the scenarios of the Singleton pattern to make it crystal clear. From the definition, it seems to be a very simple design pattern but when it comes to implementation, it creates a lot of implementation concerns. Also, the implementation of Java Singleton pattern has always been a controversial topic among developers. Here, we will learn about Singleton Design Pattern in Java with all Scenarios, different ways to implement Singleton design pattern and some of the best practices for its usage. Sometimes, we get the requirement for some classes to have exactly one instance. There are many occasions when we need only one instance of the Object and if we instantiate more than one,

Java Reference Tutorial For Young Programmers

by devs5003 - January 26, 2024January 28, 20240

Java Reference Tutorial For Young Programmers by CodeMonkey Coding is probably a term you and your children may be hearing more often as time goes on. The term, for purposes of Java, refers to the process of writing computer programs and is becoming a more and more demanding skill in the job market. That makes it an important addition to the education curriculum for many years. Even very young kids can get a start with learning to code using age relevant websites like CodeMonkey. Besides preparing them adequately for their future, there are plenty of other reasons to teach coding to children. Using Java is an ideal introduction to the topic. This guide will take you through everything you need to

JVM Architecture and Class Loaders Java

by devs5003 - January 12, 2024May 3, 20260

Being a java developer we should know the details of 'How a java class file gets processed by JVM internally'. In this article on 'JVM Architecture and Class Loaders Java' we will learn about how JVM handles a .class file and does the internal processing to generate the output. However It is just to remind you that the JVM(Java virtual Machine) is responsible to process the compiled .class file in byte-code form. In this article we will discuss about "JVM Architecture and Class Loaders Java". The Java Virtual Machine (JVM) is a key component of the Java platform, responsible for executing Java applications. Moreover, along with the internal processing of a class file we will also learn the internal Architecture of

Collection In Java

by devs5003 - November 7, 2023April 7, 20263

Every Java developer should be aware of the importance of the Collection in Java. Needless to say, you can't develop an application in Java without using the Collections. Even, Java community also assumes that Collection in Java is the most important topic after Java language basics and OOPs Concepts. Therefore, the Java Collections Framework becomes an essential component of the Java language that helps developers to manage data in an effective manner. Moreover, Collection in Java provides the best possible algorithms for common operations such as search, sort, and insert, which can improve the performance of a Java application effectively. In this article, we are going to learn all the basic and advanced concepts of Collection in Java. Moreover, you must

ChatGPT for Developers and Programmers

by devs5003 - September 21, 2023December 17, 20250

Everybody in the world must have heard about the ChatGPT. Some of us have already started utilizing it in completing our day to day tasks. It has gained a popularity during the early days of its launch. No matter which area or industry you belong to, it is very useful in getting your task done promptly. Undoubtedly, it is a very handy tool for developers and programmers as well. Therefore, it becomes important to know its capabilities for developers and programmers. In this article, we will talk about 'ChatGPT for Developers and Programmers'. How to utilize ChatGPT for Developers and Programmers? ChatGPT can help us in several ways when it comes to writing code. We can take help of it on performing some

Lombok Spring Boot And Lombok Annotations

by devs5003 - September 16, 2023December 11, 202517

While developing a project in Java, we tend to repeat the similar kind of code for each class we create. Such kind of repetitive code is generally called boilerplate code. Our next question might be like 'Can we get rid of such multiple lines of code in real time development?' Then answer of your question is simply 'Yes'. The next question should be 'How can we reduce such kind of boilerplate code?' Now the answer is 'with the help of Lombok API, some people call it Lombok Project'. However, as the title "Lombok Spring Boot and Lombok Annotations" suggests, our focus in this article will be on the Lombok API Annotations. Furthermore, the 'Lombok API' is highly being used in the