Which of the following JPA-related statements is false?
a. You can update an existing entity by modifying its entity object in the context of a transaction.
b. Once a transaction is committed, the changes to the entity are saved to the database.
c. You can delete an existing entity.
d. When you commit a transaction the entity is kept as a backup in the database.
d. When you commit a transaction the entity is kept as a backup in the database.
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A destructor is a member function that
A) is used to remove old unneeded objects. B) causes the program to end. C) is automatically called when an object is destroyed. D) can only be called by the main function of a program. E) None of the above.
The logical operator ____ has the highest priority and is evaluated first.
A. Or B. Xor C. Not D. And