Enterprise JavaBeans (EJB) is a server-side component architecture for building distributed enterprise applications in Java. It simplifies the development of large-scale, mission-critical applications by providing a standardized way to build, package, deploy, and manage business components in a distributed environment. EJB components are managed...

System design entails outlining the architecture, components, modules, interfaces, and data management of a system to meet defined criteria. It involves structuring the system, guaranteeing scalability, security, and efficiency, and integrating diverse elements for smooth operation. This phase is essential for developing effective, dependable,...

Spring Cloud is a framework that facilitates building robust, scalable, and resilient microservices. It simplifies the development of distributed systems by providing tools for service discovery, configuration management, circuit breakers, and more. Integrating seamlessly with Spring Boot, Spring Cloud streamlines the process of creating...

The Java Persistence API (JPA) is a standard specification in Java for managing relational data in applications. It facilitates object-relational mapping (ORM) by allowing developers to map Java objects to database tables, thus simplifying database operations and management. JPA abstracts away much of the boilerplate code involved in interacting...

XPath (XML Path Language) is a powerful query language used to navigate and extract information from XML documents. It enables the selection of nodes, such as elements, attributes, and text, based on a variety of criteria. XPath expressions can be absolute, starting from the root node, or relative, starting from the current node context. It...

Web services are software systems designed to support interoperable machine-to-machine communication over a network. They enable different applications, often built with diverse technologies and hosted on various platforms, to communicate and share data seamlessly. Web services can be broadly categorized into SOAP (Simple Object Access Protocol)...

The VP script is a versatile programming tool designed for automating tasks and managing complex workflows. It allows users to write scripts that can execute a variety of functions, from simple data manipulation to intricate system integrations. The script supports multiple programming languages and is equipped with robust debugging and logging...

Swagger simplifies API development by offering a standardized platform for designing, documenting, and testing APIs. It streamlines the process by providing clear descriptions of RESTful API functionalities, aiding developers in understanding and interacting with them efficiently. With Swagger, developers can automate testing, generate...

Spring MVC is a widely-used framework for building web applications in Java. It follows the Model-View-Controller architectural pattern, providing developers with a structured approach to develop scalable and maintainable web applications. With features like robust request handling, flexible configuration, and seamless integration with other...

A COBOL course offers comprehensive instruction on Common Business-Oriented Language, a programming language widely used in business, finance, and administrative systems. This course typically covers a range of topics aimed at providing students with a thorough understanding of COBOL syntax, data structures, and programming principles. The course...