SQL stands for Structured Query Language. It is used for designing and maintaining structured data in a relational database management system (RDBMS). Structured data are the data that is stored in the form of a table with a structure of rows and columns. SQL allows us to create, access, and manipulate data and the database… Read More »
Jenkins is an open-source automation server written in the Java programming language that is used for continuous integration of software projects. It also allows continuous deployment (CI/CD) for software projects by integrating with various testing and deployment tools and technologies. To learn more about Jenkins, please refer to Jenkins: An Introduction to CI/CD and Jenkins.… Read More »
The SOLID Principles Java are an object-oriented approach to software applications that has changed the way object-oriented applications are written by ensuring modularity, easy maintainability, easy understanding, easy to debug and refactor etc. The acronyms for SOLID principles are following: SOLID Principles Java Let us understand each of the Solid Design Principles Java with the… Read More »
CRUD stands for Create, Read, Update, and Delete. The CRUD Operations are the four basic operations that are performed by the software application on the persistence layer. Software applications perform CRUD operations through the use of the Hyper-Text Transfer Protocol (HTTP). These HTTP protocols have methods that are used to create, read, update, or delete… Read More »
Spring Boot is built on the top of Spring framework which means it supports all the features of Spring framework. Spring Boot makes it easy to create standalone, production-grade spring based application that you can “Just Run”. As the standard definition says, Spring Boot provides a production-ready environment, which enables developers to focus more on… Read More »
The Bean Validation API is used for the validation of constraints on an object model using annotations. It can be very useful for validating the length, format, regular expressions, etc. of an object model. By default, bean validation is a Java specification; we need to explicitly provide its implementation. Basics of Bean Validation API In… Read More »
MongoDB is an open source NoSQL database, which means that unlike SQL, we do not store data in the form of tables and columns, i.e., it will not follow the RDBMS rules. It is a scalable, high-performance, document-oriented database. Difference between SQL and NoSQL database SQL Database NoSQL Database In an SQL database, we need… Read More »
The ModelMapper is a library that is used for converting/mapping two similar object models to each other in a simple and easy way. It is used when the two models have similar data, but their structures and use cases are different. ModelMapper allows us to convert one model to another without affecting the original object… Read More »
An Exception is a problem that arise during the execution of a program. For Example, If there is a text field and any user entered number/digits in it, the program must not be crashed rather it should shows any error message or throw an exception. In order to handle these exceptions, spring-based frameworks came along… Read More »
API stands for Application Programmable Interface. It is a mechanism that is used for two or more computer programs to communicate with each other using a set of standard protocols. For example, when we try to login to a website, a login api gets called and requests the website’s server for authentication, and the website’s… Read More »