// A sample class that uses transient keyword to // skip their serialization. class Test implements Serializable {  // Making password transient for security  private transient String password;  // Making age transient as age is auto-  // computable from DOB and current date.  transient int age;  // serialize other fields  private String username email;  Date dob;  // other code } 

// Java program to demonstrate transient keyword // Filename Test.java import java.io.*; class Test implements Serializable {  // Normal variables  int i = 10 j = 20;  // Transient variables  transient int k = 30;  // Use of transient has no impact here  transient static int l = 40;  transient final int m = 50;  public static void main(String[] args) throws Exception  {  Test input = new Test();  // serialization  FileOutputStream fos = new FileOutputStream('abc.txt');  ObjectOutputStream oos = new ObjectOutputStream(fos);  oos.writeObject(input);  // de-serialization  FileInputStream fis = new FileInputStream('abc.txt');  ObjectInputStream ois = new ObjectInputStream(fis);  Test output = (Test)ois.readObject();  System.out.println('i = ' + output.i);  System.out.println('j = ' + output.j);  System.out.println('k = ' + output.k);  System.out.println('l = ' + output.l);   System.out.println('m = ' + output.m);  } }