This week's book giveaways are in the iOS and Features new in Java 8 forums.
We're giving away four copies each of Barcodes with iOS: Bringing together the digital and physical worlds and Core Java for the Impatient and have the authors on-line!
See this thread and this one for details.
The moose likes Programmer Certification (SCJP/OCPJP) and the fly likes Serializable Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login

Win a copy of Barcodes with iOS this week in the iOS forum
or Core Java for the Impatient in the Java 8 forum!

JavaRanch » Java Forums » Certification » Programmer Certification (SCJP/OCPJP)
Bookmark "Serializable" Watch "Serializable" New topic


psr krishna

Joined: Oct 05, 2000
Posts: 12

Can anyone clear my doubt
that is...
How an object which is implementing "Serializable" interface is eligible for serialization without inhereting any properties from Serializable interface since Serializable interface do not defined any methods(behaviour).
thanks inadvance
William Brogden
Author and all-around good cowpoke

Joined: Mar 22, 2000
Posts: 12888
It is just a tag that is used internally - somewhere in the serialization code there is code like:
if( obj instanceof Serializable ) ....
Java has several of these interfaces used only for tags. Cloneable is another one.
I agree. Here's the link:
subject: Serializable