Transient Example in java

/*
The Java transient keyword is used on class attributes/variables to
indicate that serialization process of such class should ignore such
variables while creating a persistent byte stream for any instance of
that class. A transient variable is a variable that can not be serialized.
*/


// Java code for serialization and deserialization
// of a Java object
import java.io.*;

class Emp implements Serializable {
private static final long serialversionUID = 129348938L;
transient int a;
static int b;
String name;
int age;

// Default constructor
public Emp(String name, int age, int a, int b)
{
this.name = name;
this.age = age;
this.a = a;
this.b = b;
}

}

public class Test1 {
public static void printdata(Emp object1)
{

System.out.println("name = " + object1.name);
System.out.println("age = " + object1.age);
System.out.println("a = " + object1.a);
System.out.println("b = " + object1.b);
}

public static void main(String[] args)
{
Emp object = new Emp("ab", 20, 2, 1000);
String filename = "shubham.txt";

// Serialization
try {

// Saving of object in a file
FileOutputStream file = new FileOutputStream
(filename);
ObjectOutputStream out = new ObjectOutputStream
(file);

// Method for serialization of object
out.writeObject(object);

out.close();
file.close();

System.out.println("Object has been serialized\n"
+ "Data before Deserialization.");
printdata(object);

// value of static variable changed
object.b = 2000;
}

catch (IOException ex) {
System.out.println("IOException is caught");
}

object = null;

// Deserialization
try {

// Reading the object from a file
FileInputStream file = new FileInputStream
(filename);
ObjectInputStream in = new ObjectInputStream
(file);

// Method for deserialization of object
object = (Emp)in.readObject();

in.close();
file.close();
System.out.println("Object has been deserialized\n"
+ "Data after Deserialization.");
printdata(object);

// System.out.println("z = " + object1.z);
}

catch (IOException ex) {
System.out.println("IOException is caught");
}

catch (ClassNotFoundException ex) {
System.out.println("ClassNotFoundException" +
" is caught");
}
}
}