Q46

Given:

public class Main {

       public static void main(String[] args) {

             doSomething();

       }

       private static void doSomething() {

             doSomeThingElse();

       }

       private static void doSomeThingElse() {

             throw new Exception();

       }

}

Which approach ensures that the class can be compiled and run?

A.
Put the throw new Exception() statement in the try block of try ‘ catch

B.
Put the doSomethingElse() method in the try block of a try ‘ catch

C.
Put the doSomething() method in the try block of a try ‘ catch

D.
Put the doSomething() method and the doSomethingElse() method in the try block of a try ‘ catch

Risposta A :

       private static void doSomeThingElse() {

             try {

                    throw new Exception();

             } catch (Exception e) {

                    e.printStackTrace();

             }

       }

Un’altra possibilità non contemplate qui è quella di aggiungere i trhown in tutti i metodi chiamanti :

       public static void main(String[] args) throws Exception {

             doSomething();

       }

       private static void doSomething() throws Exception {

             doSomeThingElse();

       }

       private static void doSomeThingElse() throws Exception {

             throw new Exception();

       }