Question 16 :
What is throw ?
A Java keyword that allows the user to throw an exception or any class that implements the "throwable" interface.
Question 17 :
What is throws ?
A Java keyword used in method declarations that specify which exceptions are not handled within the method but rather passed to the next higher level of the program.
Question 18 :
What is transaction ?
An atomic unit of work that modifies data. A transaction encloses one or more program statements, all of which either complete or roll back. Transactions enable multiple users to access the same data concurrently.
Question 19 :
What is transaction isolation level ?
The degree to which the intermediate state of the data being modified by a transaction is visible to other concurrent transactions and data being modified by other transactions is visible to it.
Question 20 :
What is transaction manager ?
Provides the services and management functions required to support transaction demarcation, transactional resource management, synchronization, and transaction context propagation.