Java Program on Transient in Serialization

Program 1

package dataflair;

import java.io.Serializable;

public class Employee implements Serializable
{
   private int eid;
   private String ename;
   private int esalary;
   transient private int mobile;

    public Employee(int eid, String ename, int esalary, int mobile) {
        this.eid = eid;
        this.ename = ename;
        this.esalary = esalary;
        this.mobile = mobile;
    }

    @Override
    public String toString() {
        return "Employee{" + "eid=" + eid + ", ename=" + ename + ", esalary=" + esalary + ", mobile=" + mobile + '}';
    }
   
   
}

Program 2

package dataflair;
import java.io.*;
public class TestRead 
{
    public static void main(String[] args) throws IOException,ClassNotFoundException 
    {
       File F=new File("d://dataflair/emp.txt");
       if(F.isFile())
       {
           FileInputStream fis=null;
           ObjectInputStream ois=null;
           try
           {
               fis=new FileInputStream(F);
               ois=new ObjectInputStream(fis);
               Employee E1;
               E1=(Employee)(ois.readObject());
               System.out.println(E1);
           }
           finally
           {
           
           }
       }
       else
         System.err.println("File not found.........");    
    }
    
}

Program 3

package dataflair;
import java.io.*;
public class TestWrite 
{
    public static void main(String[] args) throws IOException
    {
         File F=new File("d://dataflair/emp.txt");
         FileOutputStream fos=null;
         ObjectOutputStream oos=null;
         try
         {
            fos=new FileOutputStream(F);
            oos=new ObjectOutputStream(fos);
            Employee E=new Employee(101, "Ravi Gupta", 76000, 123456);
            fos.flush();
            oos.writeObject(E);
             System.out.println("Record Save.........");
         }
         finally
         {
             fos.close();
             oos.close();
         }   
    }
}