Category: Java

Differences Between Source Path, Class Path, and Build Path in Java

When diving into the world of Java development, it’s crucial to grasp the concepts of source path, class path, and build path. These three terms may sound similar, but they serve distinct purposes in the Java ecosystem. In this blog post, we’ll demystify the differences between source path, class path, and build path, and explore their significance in Java development....

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Event Driven Microservices: Outbox Pattern with Spring Boot

In microservices architectures, maintaining data consistency and ensuring reliable communication between services is critical. The Outbox Pattern is an event-driven approach that addresses these challenges by introducing an additional layer for handling events. In this tutorial, we will delve into the Outbox Pattern, explaining its principles and benefits, and guide you through implementing it with a practical Spring Boot example...

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Database-Based Authentication in Spring Security: A Step-by-Step Tutorial

In this tutorial, we will explore how to implement database-based authentication using Spring Security. We’ll create a simple web application with user registration, login, and access control. Table of Content: Setting Up the Project Let’s start by setting up a new Spring Boot project. You can do this manually or use Spring Boot Initializr to generate the project structure. Ensure...

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How to Audit JPA Entities Using Envers in a Spring Boot Application

In this tutorial, we will walk through the process of setting up auditing for JPA entities using Envers in a Spring Boot application. We will create an example Spring Boot project, define JPA entities, configure Hibernate Envers, and demonstrate how to retrieve audit information from the database. In modern applications, tracking data changes is crucial, especially in critical systems handling...

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Joining Unrelated Entities with JPA and Hibernate in Spring Boot

In this tutorial, we will explore how to join unrelated entities using JPA (Java Persistence API) and Hibernate in a Spring Boot application. The process of joining unrelated entities allows us to retrieve data from different tables that have no direct association using a single database query. By the end of this tutorial, you will have a better understanding of...

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Implementing the Strategy Pattern using Lambda Expressions in Java 8

In this tutorial, we will explore how to implement the Strategy Pattern in Java 8 using lambda expressions, which will significantly simplify our code and make it more concise. Table of Content: Understanding Strategy Pattern The Strategy Pattern is a behavioral design pattern that focuses on encapsulating a family of algorithms, making them interchangeable, and allowing clients to select the...

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Understanding the Difference Between Float and Double in Java

In Java, when dealing with numeric values that require decimal points, developers have two primary data types at their disposal: float and double. While both are used to represent floating-point numbers, they differ in precision and size. Understanding the distinctions between these data types is crucial to writing efficient and accurate Java programs. In this blog post, we’ll dive into...

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Meltdown! How to Understand Complexities in Java Programming: First Look on the Navigating Challenges with Confidence

Table of Contents Introduction Java, one of the most popular programming languages, is known for its versatility and wide range of applications. However, as Java programs grow in size and complexity, developers often encounter various challenges that can hinder productivity and performance. In this article, we will explore some common complexities in Java programming and discuss strategies to overcome them....

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SOLID thing (Principles): A Guide to Empower Writing a Better Maintainable and High Extensible Code

Introduction: In the world of software development, writing code that is easy to understand, maintain, and extend is crucial. The SOLID principles offer a set of guidelines to achieve these goals. SOLID is an acronym for five principles: In this article, we will explore each of these principles and provide Java code examples to illustrate their application. 1. Single Responsibility...

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The 15-Factor Way of App: Overcome the First Challenge to Building Cloud-Native Applications

Table of Contents Introduction The 12 Factor App and the 15 Factors are both sets of principles for building cloud-native applications. The 12 Factor App was published in 2011, and the 15 Factor was published in 2017 and they are designed to make applications easier to deploy, scale, and maintain in the cloud. What are the 12 and 15 Factors?...

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