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Serialization question - Superclass is not marked Serializable but the sublass is...

 
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Eclipse IDE Oracle Java
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Hi,
I'm reading K&B SCJP (1.6) and on page 471 there is example there superclass is not marked Serializable but the sublass is.



My output is:
before: Fido 35
after: Fido 35

but book says it should be:
before: Fido 35
after: Fido 42

Please explain which answer is correct
 
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Kamil, you are not reading or writing objects to the ObjectInputStream and ObjectOutputStream respectively. You need to write the object to the file and then read it. I think you missed some statements from the program between lines 19 and 20 and 26 and 27...
 
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You have not serialized only........
 
Kamil Wojcik
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Ankit,
Thank You for the tip! I've missed os.writeObject(d) and d = (Dogg) oi.readObject();
 
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