What is the difference between a JavaBean and a POJO?

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A JavaBean follows certain conventions. Getter/setter naming, having a public default constructor, being serialisable etc. See JavaBeans Conventions for more details.

A POJO (plain-old-Java-object) isn’t rigorously defined. It’s a Java object that doesn’t have a requirement to implement a particular interface or derive from a particular base class, or make use of particular annotations in order to be compatible with a given framework, and can be any arbitrary (often relatively simple) Java object.

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