import java.io.ObjectOutputStream;

import java.io.ObjectInputStream;

import java.io.FileOutputStream;

import java.io.FileInputStream;

import java.io.IOException;

import java.io.Serializable;

// Non-serializable Super class

class Employee{

private String name;

Employee(String name){

this.name = name;

}

@Override

public String toString(){

return name;

}

}

// A walkaround to solve the non-serializable super class

class SerEmployee implements Serializable{

private Employee emp;

private String name;

SerEmployee(String name){

this.name = name;

emp = new Employee(name);

}

private void readObject(ObjectInputStream ois) throws IOException{

name = ois.readUTF();

emp = new Employee(name);

}

private void writeObject(ObjectOutputStream oos) throws IOException{

oos.writeUTF(name);

}

@Override

public String toString(){

return name;

}

}

public class SerializationDemo2{

public static void main(String[] args){

ObjectOutputStream oos = null;

ObjectInputStream ois = null;

try{

FileOutputStream fos = new FileOutputStream("employees.dat");

oos = new ObjectOutputStream(fos);

SerEmployee se = new SerEmployee("John Doe");

oos.writeObject(se);

System.out.println("se object writeten to file.");

oos.close();

oos = null;

FileInputStream fis = new FileInputStream("employees.dat");

ois = new ObjectInputStream(fis);

se = (SerEmployee)ois.readObject();

System.out.println("se object read from file.");

System.out.println(se);

}catch(ClassNotFoundException cnfe){

cnfe.printStackTrace();

}catch(IOException ioe){

ioe.printStackTrace();

}finally{

if(oos!=null){

try{

oos.close();

}catch(IOException ioe){

ioe.printStackTrace();

}

}

if(ois!=null){

try{

ois.close();

}catch(IOException ioe){

ioe.printStackTrace();

}

}

}

}

}