Understanding Spring Annotations: @Component, @Service, and @Repository

Spring Framework is built on the principle of Inversion of Control (IoC) and Dependency Injection (DI). One of the core features of Spring is its ability to manage the lifecycle of objects using annotations. Three of the most commonly used annotations in Spring are @Component, @Service, and @Repository. While they all serve the purpose of […]

Interview Experience at Vrize

Question: what is a microservices architecture from your perspective?  Question : Why do you need an object relational mapper when working with databases? Object relational mapper? An Object-Relational Mapper (ORM) is a code library that provides a way to map object-oriented programming languages to relational databases. The main reasons why you need an ORM when working […]

Interview questions Asked in Coforge

Certainly! Here are the interview questions rephrased in a clear format: These questions cover a range of topics from design principles and array manipulation to concurrency and exception handling in Java and Spring Boot. If you need detailed answers or code examples for any of these questions, please let me know!

Ensuring Quality and Maintainability in Your Projects

Quality and maintainability are two key factors that determine the success of a software project. In this blog post, we’ll explore some strategies and best practices to ensure these aspects in your projects. Code Reviews Code reviews are a powerful tool for maintaining the quality of your codebase. They help catch bugs, ensure consistent coding […]

Understanding Memory Leaks in Java: Causes and Code Examples

Memory leaks can be a serious issue in any programming language, and Java is no exception. Despite having a built-in garbage collector, memory leaks can still occur in Java applications. In this blog post, we’ll explore some common causes of memory leaks in Java and provide code examples for each case. 1. Static Fields Static […]

Working with Primary Keys in Spring Boot JPA

When building applications with Spring Boot and the Java Persistence API (JPA), one of the essential tasks is mapping entity classes to database tables. In this process, defining primary keys for your entities is crucial. Spring Boot JPA provides annotations to simplify this task: @Id and @GeneratedValue. 👉Please Note Java Persistence API (JPA) is changed […]

Understanding spring.jpa.hibernate.ddl-auto in Spring Boot

When working with Spring Boot and Hibernate, one of the properties you’ll come across is spring.jpa.hibernate.ddl-auto. This property is a powerful tool that controls Hibernate’s automatic schema generation¹³⁶. Let’s dive into what this property does and the differences between its various options. What is spring.jpa.hibernate.ddl-auto? The spring.jpa.hibernate.ddl-auto property is a Hibernate feature that Spring Boot […]

Exploring Java’s Collectors Class: A Comprehensive Guide

In Java 8, the introduction of the Stream API brought a new functional programming style to the language. One of the most useful classes in this API is Collectors, which provides a set of convenient reduction operations, allowing you to perform complex data operations in a concise and readable manner. In this blog post, we’ll […]

Counting Elements in Java Streams: count() vs collect(Collectors.counting())

When working with Java streams, you may sometimes need to count the number of elements in the stream. Java provides two different approaches to achieve this: the count() method and the collect(Collectors.counting()) method. While both methods serve the same purpose, they differ in their underlying implementation and use cases. The count() Method The count() method […]