private static final long serialVersionUID , whats this?

Question

Mudzy 0 Newbie Poster

12 Years Ago

I want to extend JFrame needed for my GUI program but i get this..

http://imageshack.us/photo/my-images/209/screenshot20111226at163.png/

how do i solve this?

java

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Latest Post 12 Years Ago Latest Post by JamesCherrill

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JamesCherrill 4,733 Most Valuable Poster Team Colleague Featured Poster · Answer 1 · 2011-12-26T23:38:44+00:00

When you have a serializable class you're supposed to define a serialVersionUID that ideentifies the version of the serialized form - if you change how it's serialized you're supposed to change the serialVersionUID.
It's a complete waste of time and a real annoyance. Either ignore it, or create a private static final long variable called serialVersionUID and give it an arbitrary value, eg 0, then forget it.