The Debugger Introduction When building RESTful APIs in Spring Boot, exposing entity classes directly can lead to security risks, performance issues, and tight coupling between the API and the database. This is where DTOs (Data Transfer Objects) come into play. A DTO (Data Transfer Object) is a simple object that carries data between different layers of an … Read more
Spring Boot is a powerful framework designed to simplify the development of Java-based applications by eliminating boilerplate code and configurations. It builds on top of the Spring Framework and enables developers to create production-ready applications quickly. Why Use Spring Boot? Key Features of Spring Boot 1. Spring Boot Starters Spring Boot provides a set of pre-defined … Read more
The Java Collection Framework (JCF) is a fundamental part of Java that provides a set of classes and interfaces to store and manipulate groups of objects. It simplifies data handling, improves performance, and enhances code reusability. In this blog post, we will explore the key components of the Java Collection Framework, their advantages, and when to use … Read more
Conceptual Questions 1. What are the main features introduced in Java 8? 2. What are functional interfaces? 3. Explain Stream and its key methods. 4. What is the difference between map() and flatMap()? 5. What is Optional in Java 8? 6. How do default methods work in interfaces? 7. What is the purpose of Collectors? 8. How does the Date and … Read more
Introduction Java is a powerful, widely-used programming language that follows the Object-Oriented Programming (OOP) paradigm. OOP allows developers to structure code using objects, making programs more modular, reusable, and maintainable. In this guide, we will explore the fundamental principles of Java OOP and demonstrate how to apply them effectively. 1. Core Principles of OOP Java … Read more