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What is serialization and deserialization in Java with example?

What is serialization and deserialization in Java with example?

Serialization is a mechanism of converting the state of an object into a byte stream. Deserialization is the reverse process where the byte stream is used to recreate the actual Java object in memory. This mechanism is used to persist the object. The byte stream created is platform independent.

How does serialization and deserialization work in Java?

Serialization is the conversion of the state of an object into a byte stream; deserialization does the opposite. Stated differently, serialization is the conversion of a Java object into a static stream (sequence) of bytes which can then be saved to a database or transferred over a network.

How an object is serialized in Java?

To serialize an object means to convert its state to a byte stream so that the byte stream can be reverted back into a copy of the object. A Java object is serializable if its class or any of its superclasses implements either the java. Button class implements the Serializable interface, so you can serialize a java.

Why do we use serialization and deserialization in Java?

Well, serialization allows us to convert the state of an object into a byte stream, which then can be saved into a file on the local disk or sent over the network to any other machine. And deserialization allows us to reverse the process, which means reconverting the serialized byte stream to an object again.

What are rules of serialization in Java?

An object is serializable only if its class or its superclass implements the Serializable (or Externalizable) interface.

  • An object is serializable (itself implements the Serializable interface) even if its superclass is not.
  • The no-arg contructor of every non-serializable superclass will run when an object is deserialized.
  • How to serialize and deserialize an object?

    How to Serialize and Deserialize a Python object pickle.dump () function. Python offers pickle module that implements binary protocols for serializing and de-serializing a Python object. json.dumps () function. Alternatively, you can use the json module which a standard library module allowing JSON serialization and deserialization. simplejson.dump () function.

    Why do you use serialization in Java?

    Why to use serialization in Java? Serialisation is used in the cases where you want to save an object state and convert that object into byte stream, objects need to be serilazed. While you’re running your application, all of its objects are stored in memory (heap memory).

    What is serialization and deserialization conceptually?

    Serialization is the process of saving an object’s state to a sequence of bytes, which then can be stored on a file or sent over the network, and deserialization is the process of reconstructing an object from those bytes. Only subclasses of the Serializable interface can be serialized.