Thursday, 29 September 2016

How to Serialize Object in Java - Serialization Example

Serialization is one of the important but confusing concept in Java. Even experienced Java developer struggle to implement Serialization correctly. The Serialiation mechamism is provided by Java to save and restore state of an object programatically. Java provides two classes Serializable and Externalizable in package to facilitate this process, both are marker interface i.e. an interface without any methods. Serializing an Object in Java means converting into a wire format so that you can either persists its state in a file locally or transfer it to another client via the network, hence it become an extrememly important concept in distributed applications running across several JVMs. There are other features in Java e.g. Remote Method Invocation (RMI) or HttpSession in Servlet API which mandates the participating object should impelment Serializable interface because they may be transffered and saved across the network.
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