Serializing-Deserializing transient variables manually

Problem statement - We've class Parent with 3 attributes and child class implementing it.
If we make 2 attributes transient , then these 2 attributes won't be part of serialization .
How to make these 2 attributes to be part of serialization and deserilization?

Solution :
Overriding readObject() and writeObject() and manually serializing and deserializing transient variables after default serialization

class Parent implements Serializable {

      

     private static final long serialVersionUID = 1L;

    

     String pFName ="Paras";

     transient String pLName="Chawla";

     transient int adharNo=12345;

}

/* transient fields can't serialized/deserialized ,thus during default serialization , we've to store transient fields manually in physical location.

*Same during deserilization , we've to read transient fields from physical location else they would come as null.

Order of storing & fetching transient fields must be same

*/

class Child extends Parent implements Serializable {

    

     private static final long serialVersionUID = 1L;

     Date date = new Date();

     /*Serializing transient fileds as well by overriding writeObject()*/

     private void writeObject(ObjectOutputStream out) throws IOException {

       

/* Write the non-static and non-transient fields of the current class to this stream*/

        out.defaultWriteObject();

        out.writeObject(this.pLName);

        out.writeInt(this.adharNo);

    }

/* De-Serializing transient fileds as well by overriding writeObject()*/

     private void readObject(ObjectInputStream in) throws IOException,ClassNotFoundException {

       

          /*Read the non-static and non-transient fields of the current class from this stream*/

        in.defaultReadObject();

        this.pLName=(String) in.readObject();

        this.adharNo = (int)in.readInt();

    }

    

}

public class SerializationInheritance {

     public static void main(String[] args) throws IOException, ClassNotFoundException {

          Child child = new Child();

         

          FileOutputStream fos = new FileOutputStream("child.ser");

          ObjectOutputStream oos = new ObjectOutputStream(fos);

          System.out.println("Before Serilization");

          System.out.println("Adhar No :" +child.adharNo + "\nFirst name :" +child.pFName +"\nLast name :"+

          child.pLName + "\nDate : "+child.date);

          oos.writeObject(child);

          oos.close();

         

          FileInputStream fis = new FileInputStream("child.ser");

          ObjectInputStream ois = new ObjectInputStream(fis);

          Child deserializaChild = (Child) ois.readObject();

          System.out.println("\nAfter DeSerilization");

          System.out.println("Adhar No :" +deserializaChild.adharNo + "\nFirst name :" 
          + deserializaChild.pFName + "\nLast name :"+ deserializaChild.pLName + "\nDate : "+ 
            deserializaChild.date);

          ois.close();

     }

}

Output

Before Serilization

Adhar No :12345

First name :Paras

Last name :Chawla

Date : Fri Aug 11 17:27:40 IST 2017

After DeSerilization

Adhar No :12345

First name :Paras

Last name :Chawla

Date : Fri Aug 11 17:27:40 IST 2017