What is a JavaBean exactly?

Question

I understood, I think, that a \"Bean\" is a Java class with properties and getters/setters. As much as I understand, it is the equivalent of a C struct. Is that true?

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Answer 1

A Java Bean is a java class [conceptual] that should follow following conventions:

1. It should have a no-arg constructor.
2. It should be Serializable.
3. It should provide methods to set and get the values of the properties, known as getter and setter methods.

It is a reusable software component. It can encapsulate many object into one object so that same object can be accessed from multiples places and is a step towards easy maintenance of code.