source code Serializable

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;



    class Dog implements Serializable
    {
    int i=10;
    int j=20;
    transient int k=30;  // here k value serialize with default value.
    
    }
    public class Myser1 {
    public static void main(String arg[])throws Exception

    {
    Dog d1=new Dog();
    FileOutputStream fos=new FileOutputStream("abc.txt");
    ObjectOutputStream oos=new ObjectOutputStream(fos);
    oos.writeObject(d1);

    FileInputStream fis=new FileInputStream("abc.txt");
    ObjectInputStream ois=new ObjectInputStream(fis);
    Dog d2=(Dog)ois.readObject();
    System.out.println(d2.i+"......"+d2.j+"...."+d2.k);
}
    }


output:
10.....20.....0