Hi Guy's !!!

Wanted to pass formatted text in a Chat Appl.

Have created the following files :

import java.text.*;
import java.io.*;

public class FlashAttributedString extends AttributedString implements Serializable
{
public FlashAttributedString(String text)
{
super(text);
}
}

This class extends the class AttributedString and implements the Serializable interface.This class is then used in the following code :

import java.io.*;

public class SerializationDemo
{
public static void main(String args[])
{
try
{
FlashAttributedString obj = new FlashAttributedString("This is Seriaized");

System.out.println("obj = " + obj);
FileOutputStream fos = new FileOutputStream("serial.txt");
ObjectOutputStream oos = new ObjectOutputStream(fos);
oos.writeObject(obj);
oos.flush();
oos.close();
}
catch(Exception e)
{
e.printStackTrace();
}

try
{
FlashAttributedString obj1;
FileInputStream fis = new FileInputStream("serial.txt");
ObjectInputStream ois = new ObjectInputStream(fis);
obj1=(FlashAttributedString)ois.readObject();
ois.close();
System.out.println("obj1 = " + obj1);
}
catch(Exception e)
{
e.printStackTrace();
}
}
}

On executing this file an exception was thrown at the line ois.readObject();
.

The Exception thrown was:

java.io.InvalidClassException:java.text.AttributedString;

How should it be rectified ? Pls Suggest.

Thanks Guy's .