// Program to implement serialization and deserialization concept. import java.io.*; class Dog implements Serializable{ // making the dog object Serializable by implementing Serializable interface(no methods ---marker interface ) int i = 10; transient int j = 20; } class SerializedDemo { public static void main(String[] args) throws Exception{ Dog d1 = new Dog(); // d1----i=10,j=20 // Serialization FileOutputStream fos = new FileOutputStream("aaa.txt"); ObjectOutputStream oos = new ObjectOutputStream(fos); // oos.writeObject(d1); //Deserialization FileInputStream fis = new FileInputStream("aaa.txt"); ObjectInputStream ois = new ObjectInputStream(fis); Dog d2 = (Dog)ois.readObject(); // readObject() method returns object of Object type System.out.println(d2.i+"......."+d2.j); } }