The code fragment will fail to compile because the readObject method in the Product class is missing
the @Override annotation. The readObject method is a special method that is used to customize the
deserialization process of an object. It must be declared as private, have no return type, and take a
single parameter of type ObjectInputStream. It must also be annotated with @Override to indicate
that it overrides the default behavior of the ObjectInputStream class. Without the @Override
annotation, the compiler will treat the readObject method as a normal method and not as a
deserialization
hook.
Therefore,
the
code
fragment
will
produce
a
compilation
error. Reference: Object Serialization - Oracle, [ObjectInputStream (Java SE 17 & JDK 17) - Oracle]
And the shop class:
And the shop class:
What is the result?