what is serialization in java

What is serialization

Serialization is a mechanism used to process object streams, the so-called object stream That is, streaming the content of the object. The streamed objects can be read and written, and the streamed objects can also be transmitted between networks. Serialization is to solve the problems caused when reading and writing object streams.

Implementation of serialization

The class that needs to be serialized implements the Serializable interface. This interface has no methods that need to be implemented. Implements Serializable is just to mark that the object can be is serialized, and then use an output stream to construct an ObjectOutputStream (object stream) object. Then, use the writeObject(Object obj) method of the ObjectOutputStream object to write out the object with the parameter obj (that is, save its state). To restore, use the input stream.

Concept

Serialization: The process of converting Java objects into byte sequences.

Deserialization: The process of restoring a byte sequence into a Java object.

Purpose

1. Permanently save the byte sequence of the object to the hard disk, usually in a file;

2. A sequence of bytes for an object sent over the network.

Recommended tutorial: Java tutorial

The above is the detailed content of what is serialization in java. For more information, please follow other related articles on the PHP Chinese website!