Which of the following statements about JPA database transaction processing is false?
a. Transaction processing enables a program that interacts with a database to treat a set of operations as a single operation. Such
an operation also is known as an atomic operation or a transaction.
b. At the end of a transaction, a decision can be made either to commit the transaction or roll back the transaction.
c. Committing a transaction finalizes the database operation(s); all insertions, updates and deletions performed as part of the transaction cannot be reversed.
d. Rolling back the transaction leaves the database in its state prior to the database operation. This is useful when a portion of a transaction fails to complete properly.
c. Committing a transaction finalizes the database operation(s); all insertions, updates and deletions performed as part of the transaction cannot be reversed.
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Indicate whether the statement is true or false
When a generic class with an unconstrained type parameter is instantiated without specifying an actual type argument,
A) the type Object is used for the unspecified type B) the compiler generates an error C) the computer throws a ClassCastException D) None of the above