transient for serializing singleton

Question

Effective Java - To maintain the singleton guarantee, you have to declare all instance fields transient and provide a \'readResolve\' method. What do we achieve by declaring

Answer 1

try {
            c=MySingleton.getInstance();
            c.setState(25);
            FileOutputStream fs = new FileOutputStream("testSer.ser");
            ObjectOutputStream os = new ObjectOutputStream(fs);
            os.writeObject(c);
            os.close();
 }

You are getting 25 because you are setting that value in the object. Refer above code. I think you were expecting the answer to be 15?