* - At line n1, implement the java.io.AutoCloseable interface
* no need of this since code doesn't use LuxuryCar within try with resources
* - At line n3, replace Car with LuxuryCar.
* this will print same result but doesn't fix compilation error.
* - At line n1, implement the java.io.Serializable interface
* this will print same resul but doesn't fix compilation error.
* - At line n3, replace readObject() with readLine()
* readLine() returns String since line n3 force cast to Car that will lead to
* another compilation issue.
* - At line n2, in the main method signature, add throws IOException, ClassNotFoundException
* this will fix the compilation issue and will let the program run with the target result
* - At line n2, in the main method signature, add throws IOException, ClassCastException
* still ClassNotFoundException needs to be declared
other note:
- line n3 has extra "(" that needs to be remove as well.
IOException (for file-related issues during serialization/deserialization).
ClassNotFoundException (thrown by ObjectInputStream.readObject() if the class cannot be found during deserialization).
the right option is E. At line n2, in the main method signature, add throws IOException, ClassNotFoundException.
upvoted 2 times
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