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so that when the internals of a class change the vm knows whether it can serialize/deserialize an object based on the version of the class it has<br />
<br />

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so that when the internals of a class change the vm knows whether it can serialize/deserialize an object based on the version of the class it has



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serialization is given to a class to uniquely identify it during<br />
serialization and deserialization. It is required so that the class will<br />
be compatible with different version of jvm. You can set a random number<br />
as serailVersionUID.
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serialization is given to a class to uniquely identify it during
serialization and deserialization. It is required so that the class will
be compatible with different version of jvm. You can set a random number
as serailVersionUID.

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a good explanation here <a href="http://www.javaworld.com/javaworld/javaqa/2003-06/02-qa-0627-mythser.html" rel="ugc">http://www.javaworld.com/javaworld/javaqa/2003-06/02-qa-0627-mythser.html</a>
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a good explanation here http://www.javaworld.com/javaworld/javaqa/2003-06/02-qa-0627-mythser.html [http://www.javaworld.com/javaworld/javaqa/2003-06/02-qa-0627-mythser.html]

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<div class="content wysiwyg-content">
Hi,<br />
What is serialVersionUID? Why it is required? How it is implemented?<br />
Thanks,<br />
Aneesh.
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Hi,
What is serialVersionUID? Why it is required? How it is implemented?
Thanks,
Aneesh.

Java serialVersionUID

Java is a platform-independent, object-oriented programming language and run-time environment, designed to have as few implementation dependencies as possible such that developers can write one set of code across all platforms using libraries. Most devices will not run Java natively, and require a run-time component to be installed in order to execute a Java program.