Exam 1z0-819 topic 1 question 185 discussion

Actual exam question from Oracle's 1z0-819

Question #: 185
Topic #: 1

Given the code fragment from Box.java:

Given the code fragment from Item.java:

Given the information:

The classes Box and Item are encapsulated with getters and setters methods.
The classes Box and Item contains required constructors source code.

and the code fragment:

Which action serializes the b1 object?

A. Handle NotSerializableException in the try clause or throw in the main() method definition.
B. Add SerialVersionUID to the Box and Item class.
C. Implement the Serializable interface in the Item class.
D. Override readObject() and writeObject() methods in the Book class.
E. Remove out.flush() method invocation.

Show Suggested Answer

Suggested Answer: C 🗳️

by d7bb0b2 at Jan. 10, 2024, 12:58 a.m.

Comments

Submit Cancel

ASPushkin

6 months, 1 week ago

Selected Answer: C

C) is the right answer but serialization could be done by the readObject and writeObject methods as well.

upvoted 1 times

...

d7bb0b2

6 months, 4 weeks ago

Selected Answer: C

The correct action to serialize the b1 object is C. Implement the Serializable interface in the Item class. ". In Java, if a class implements Serializable, then all its fields must be serializable as well. If a field is not primitive or does not implement Serializable, then serialization of the class will fail."

upvoted 1 times

...

Exam 1z0-819 All Questions

View all questions & answers for the 1z0-819 exam

Exam 1z0-819 topic 1 question 185 discussion

Comments

ASPushkin

d7bb0b2

SY0-701