package io;

import java.io.*;

import java.util.concurrent.*;

import java.util.*;

/**

* RUN:

* javac io/SerialCtl.java && java io.SerialCtl

*

* OUTPUT:

* Before serialize:

* Without transient: Test1

* With transient: Test2

* After unserialize:

* Without transient: Test1

* With transient: Test2

*/

public class SerialCtl implements Serializable {

private String a;

private transient String b;

public SerialCtl(String aa, String bb) {

a = "Without transient: " + aa;

b = "With transient: " + bb;

}

public String toString() {

return a + "\n" + b;

}

private void writeObject(ObjectOutputStream stream) throws IOException {

stream.defaultWriteObject();

stream.writeObject(b);

}

private void readObject(ObjectInputStream stream) throws IOException, ClassNotFoundException {

stream.defaultReadObject();

b = (String)stream.readObject();

}

public static void main(String[] args) throws IOException, ClassNotFoundException {

SerialCtl sc = new SerialCtl("Test1", "Test2");

System.out.println("Before serialize: \n" + sc);

ByteArrayOutputStream buf = new ByteArrayOutputStream();

ObjectOutputStream o = new ObjectOutputStream(buf);

o.writeObject(sc);

ObjectInputStream in = new ObjectInputStream(

new ByteArrayInputStream(buf.toByteArray())

);

SerialCtl sc2 = (SerialCtl)in.readObject();

System.out.println("After unserialize: \n" + sc2);

}

}