Can we Serialize Static Variable

[sirisha makkapati]

Hi any one please tell me

Can We Serialize static variable.

Thanks..

[David McCombs]

Yes, apparently you can, despite that is doesn't make sense, but it could cause some serious problems. So it should probably be avoided.

Here is a good explanation of a potential pitfall
[ January 11, 2007: Message edited by: David McCombs ]

[Shashi Kant]

hello Sirisha

Static variables are NEVER saved as part of the object's state, because they do not belong to the object.
Static variables are not part of the instance's state at all, static variables are purely CLASS variables. They have nothing to do with individual instances. serialization applies only to OBJECTS.

[Guru dhaasan]

You can do that but will be useless

[Mohammad Parwez]

Shashi Kant wrote:hello Sirisha

Static variables are NEVER saved as part of the object's state, because they do not belong to the object.
Static variables are not part of the instance's state at all, static variables are purely CLASS variables. They have nothing to do with individual instances. serialization applies only to OBJECTS.

this is possible by providing the following two methods in our class

as shown below. writeObject(),readObject().

import java.io.*;
public class Ab
{
 public static void main(String a[])
  throws Exception
 {
  FileOutputStream fos = new FileOutputStream("data.txt");
  ObjectOutputStream oos = new ObjectOutputStream(fos);
  Abc1 a1 = new Abc1();
        a1.i = 25;
  a1.j = 35;
  a1.k = "srinivas";

  oos.writeObject(a1);
  fos.close();
 }
}

import java.io.*;
public class Abc1 implements Serializable
{
 public int i;
 public static float j;
 public  static String k;
private void writeObject(java.io.ObjectOutputStream out)
     throws IOException
 {
    System.out.println("writeObject");
 out.writeInt(i);
 out.writeFloat(j);
    }
 private void readObject(java.io.ObjectInputStream in)
     throws IOException, ClassNotFoundException
    {
     System.out.println("readObject");
 i= in.readInt();
   j= in.readFloat();
    }
}

ok baye...

[Campbell Ritchie]

Welcome to the Ranch , Mohammad Parwez

Please always use code tags, which I have added to your code and you can see how much better it looks.
David McCombs, I couldn’t get the link you posted to open. It also has an incorrect certificate. Please check the link for errors.

[Campbell Ritchie]

I hadn’t noticed that link was posted 5 years ago; that must be why it won’t open.

[Divya Kumar]

I have tried but we can't serialize static field,through normal serialization concept,may be we can do it through exterlization