Question

what is the difference between throws and rethrowing exception

Answer 1

The Java throw keyword is used to explicitly throw an exception. We can throw either checked or uncheked exception in java by throw keyword. The throw keyword is mainly used to throw custom exception. The exceptions occurred in the try block are caught in catch block. Thus caught exceptions can be re-thrown using throw keyword. Re-thrown exception must be handled some where in the program, otherwise program will terminate abruptly.