Serializable Test - Java Example Program

import java.io.*;

class SerializableTest
{
    public static void main(String[] args) throws IOException, ClassNotFoundException 
    {
    
        // SERIALIZATION - START
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ObjectOutputStream oos = new ObjectOutputStream(baos);
        Student hemanth = new Student();
        hemanth.name = "Hemanth";
        hemanth.rollNumber = 25;
        hemanth.section = 'C';
        System.out.println("Before - " + hemanth.name + " " + hemanth.rollNumber + " " + hemanth.section);
        oos.writeObject(hemanth); // LINE A
        oos.close();
        byte[] objectDataBytes = baos.toByteArray();
        // SERIALIZATION - END
    
        // DESERIALIZATION - START
        ByteArrayInputStream bais = new ByteArrayInputStream(objectDataBytes);
        ObjectInputStream ois = new ObjectInputStream(bais);
        Student hemanthRestored = (Student) ois.readObject(); // LINE B
        System.out.println("After - " + hemanthRestored.name + " " + hemanthRestored.rollNumber + " " + hemanthRestored.section);
        ois.close();
        // DESERIALIZATION - END
    }

}

class Student implements Serializable 
{

    String name = "";
    int rollNumber = 0;
    char section = 'A'; // LINE C
}