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It is the ability to save the current state of a Bean, including the values of a Bean's properties and instance variables, to nonvolatile storage and to retrieve them at a later time.
*Methods
A bean should use [[Mutator_method#Java_example|accessor methods]] to [[Encapsulation_(computer_programming)|encapsulate]] the properties. A bean can provide other methods for buiness logic not related to the access to the properties.
== Advantages ==
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