A method doSomething () that has no exception handling code is modified to trail a method that throws a checked exception.
Which two modifications, made independently, will allow the program to compile?
A.
Catch the exception in the method doSomething().
B.
Declare the exception to be thrown in the doSomething() method signature.
C.
Cast the exception to a RunTimeException in the doSomething() method.
D.
Catch the exception in the method that calls doSomething().
Explanation:
Valid Java programming language code must honor the Catch or Specify Requirement. This means that code that might throw certain exceptions must be enclosed by either of the following:
* A try statement that catches the exception. The try must provide a handler for the exception, as described in Catching and Handling Exceptions.
* A method that specifies that it can throw the exception. The method must provide a throws clause that lists the exception, as described in Specifying the Exceptions Thrown by a Method. Code that fails to honor the Catch or Specify Requirement will not compile.
“A,B”
Explanation:
http://docs.oracle.com/javase/tutorial/essential/exceptions/try.html
The Answer is A, B.
Lousy question:
B is not enough, when you declare the exception to be thrown in the doSomething() method signature you also need to do something in the method that calls doSomething else you’ll get ‘Unhandled exception type Exception’.
So the answer should be A and B & D together.