Object Serialization [SAMPLE]

import java.io.*;
import java.net.*;

class MyClass implements Serializable
{
    private int val;
    MyClass( int v)
    {
        val=v;
    }
    public String toString()
    {
        return Integer.toString(val);
    }
}


class SerialTest
{
    public static void main(String arg[])
    {
        try
        {
            MyClass a = new MyClass(5);
            ObjectOutputStream out=new ObjectOutputStream(new FileOutputStream("obj.dat"));
            out.writeObject(a);
            ObjectInputStream in=new ObjectInputStream(new FileInputStream("obj.dat"));
            MyClass b=(MyClass) in.readObject();
            System.out.println(b);
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }
    }
}