How to deSearialized Java Objects

package com.safiuz;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.ObjectInputStream;

public class Manager1 {

public static void main(String[] args) {
//
FileInputStream fin = null;
ObjectInputStream in = null;
try{
File f1 = new File("text.txt");
fin = new FileInputStream(f1);
in = new ObjectInputStream(fin);
Person p1 = (Person)in.readObject();
System.out.println(p1);
}
catch(IOException ex){
ex.printStackTrace();
}
catch(ClassNotFoundException ex){
ex.printStackTrace();
}
finally
{
try{
if(in!= null){
in.close();
in = null;
}
}
catch(IOException ex){
ex.printStackTrace();
}
try
{
if(fin!= null)
{
fin.close();
fin = null;
}
}
catch(IOException ex){
ex.printStackTrace();
}
}
}
}