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Answer by JAdel for What is a JavaBean exactly?

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If you want to understand Java-Beans, you first have to understand software-components.

Software components

A software-component is a part of an application that runs a specific operation. A software component can also be part of a service.

A component is:

  • Coupled (has dependencies)
  • Statefull (it saves the states of instance variables)
  • Not standarised, it is designed for a specific use case (main difference between Java-EE Beans)
  • Runs in client machine

Java Beans (Enterprise Beans)

  • Standarised components that run in a Java EE-server
  • Including different business logics to complete a specific service
  • Simplify development of complex multilayer distributed systems

Java Beans are more of a concept to manage big systems. Thats why they need standarization.

Overview

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