This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
What is the diff b/w Serialization and Externalization,At what occasion Externalization can be useful.As in Serialization ,Serialized object can be deserialized and does the same thing applies to Externalization ??? -Anil
Externalization takes serialization one step further. <code>Externalizable</code> is an interface that extends <code>Serializable</code>. Classes can implement <code>Externalizable</code> interface and gain the fine-grain control over the way the object gets serialized by overriding <code>readExternal(ObjectInput in)</code> and <code>writeExternal( OjbectOutput out )</code> methods. During serialization, if the class implements <code>Externalizable</code>, then the overridden methods are called. On the otherhand, if the class implements only <code>Serializable</code>, you'll get the plain vanilla object serialization.
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