Thread: Object Serialization how it will work?

Hi,

I saved a object in file with serialization method and then i change the class defination and after it i deserialize the object it will work or not?

//old class
Class A
{
int i;
}
//new class
class B
{
int a;
}

Interesting question.
Try it and see.

Hi,

it does not work.
As i know when i try to save the object jvm also create hashcode(serialVersionUID ) for our class and also save it with the object.and when i pick the object from the memory after changing the name of the variable at that time hash code generated by the jvm for our class is different from the privous one that is save in memory so jvm throws class cast exception.

can any body explain what information jvm save with the object during Serialization.?
and how de serialization work?