Serialization in Java

Serialization can be defined as a process to write the object state to the byte stream.

• Byte stream can be transferred over the network or saved into the database.

• A Java object can be serialized only if it implements the Serializable interface.

In this post, we are going to write a simple example to understand the Serialization process in Java.

Student.java

package com.javainstance;

import java.io.Serializable;

/**

 * @author javainstance

 *

 */

public class Student implements Serializable {

private int StudentId;

private String StudentName;

private int studentAge;

public Student(int studentId, String studentName, int studentAge) {

super();

StudentId = studentId;

StudentName = studentName;

this.studentAge = studentAge;

}

public int getStudentId() {

return StudentId;

}

public void setStudentId(int studentId) {

StudentId = studentId;

}

public String getStudentName() {

return StudentName;

}

public void setStudentName(String studentName) {

StudentName = studentName;

}

public int getStudentAge() {

return studentAge;

}

public void setStudentAge(int studentAge) {

this.studentAge = studentAge;

}

@Override

public String toString() {

return "Student [StudentId=" + StudentId + ", StudentName=" + StudentName + ", studentAge=" + studentAge + "]";

}

}

SerializationInJava

package com.javainstance;

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.ObjectOutputStream;

/**

 * @author javainstance

 *

 */

public class SerializationInJava {

public static void main(String[] args) {

Student student = new Student(1, "James", 21);

try {

FileOutputStream fileOutStream = new FileOutputStream("D:\\Student.txt");

ObjectOutputStream objectOutputStream = new ObjectOutputStream(fileOutStream);

objectOutputStream.writeObject(student);

objectOutputStream.close();

fileOutStream.close();

System.out.println("Serialization in Successful!");

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

}

Output:

Student.txt

¬í sr com.javainstance.Studentù ‚R(L I StudentIdI 

studentAgeL StudentNamet Ljava/lang/String;xp     t James

Deserialization In Java

References:

https://docs.oracle.com/javase/tutorial/jndi/objects/serial.html

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