JPA stands for Java Persistence API. It is a specification for managing relational databases in Java applications. JPA is a part of Java EE (Enterprise Edition), and it is used for persisting, retrieving and managing Java objects in a relational database. It provides facilities for developers to interact with the relational database using object-oriented programming… Read More »
A URL shortener is a service that takes a long URL and generates its short version, which contains a sequence of characters that points to the original URL. The primary purpose of this service is to create more user-friendly and manageable links that are easy to share, especially while sharing over platforms that have limited… Read More »
What is a constructor in Java? In Java, constructors are a special type of method that is used to initialize the objects. It has the same name as that of a class and does not have a return type, not even void. Constructors are automatically called as soon as objects get created and set the… Read More »
In Java, immutable objects are objects whose state cannot be changed once they are created; they will remain constant throughout the lifecycle of the object. It helps in terms of simplicity, thread-safety and security. For example, string objects, In Java, string objects are immutable. i.e., once they are initialized, they cannot be changed. To learn… Read More »
Sonarlint by Sonar is a free extension for our development environments that covers all the most popular programming languages. Like spell checker, Sonarlint squiggles coding issues and performs on-the-fly analysis to detect common mistakes, tricky bugs, and security vulnerabilities. Along with this, it also teaches us clean coding practices. This way, it helps us spend… Read More »
What is Swagger? Swagger, now known as OpenAPI Specification, is a tool that provides a set of rules and conventions for building, interacting with, and documenting APIs (application-programmable interfaces). It provides a standard to describe the robust APIs, which makes it easier for developers to understand the capabilities of a service without accessing its source… Read More »
Sometimes in enterprise applications, we are required to configure the collection name from the properties file to our entity (model) class instead of hardcoding the collection name. In this tutorial, we will learn to inject Collection name in @Document from properties file. Steps to inject Collection name in @Document from properties file We are using… Read More »
The term Dockerize refers to the process of packaging an application and its dependencies into containers using Docker. Docker is an open-source platform that helps developers automate the deployment of applications into lightweight and portable containers that contain everything needed to run the application, including the source code, libraries, and system tools. In this tutorial,… Read More »
Java Decompiler A Java decompiler is a reverse engineering tool that can be used to convert Java bytecode back to Java source code. It became useful when we had the compiled Java classes (in the form of bytecode, typically stored in a.class file) but not the original source code. In this tutorial, we will learn… Read More »
YAML stands for YAML Ain’t Markup Language is also known as Yet Another Markup Language. It is generally used for configuration files and the data exchange between languages with different data structures. Given below is an example of a YAML file representing information about a website: Java Object to YAML file In this tutorial, we are… Read More »