What does requirement 5 means?

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Hi, May I have some light about the requirement number 5? I've tried this task several times but I'm always failing in this requirement. I guess I have to catch the exception but the task must continue with the countdown, don't I? Thanks in advance

package com.codegym.task.task09.task0920; /* Countdown */ public class Solution { public static void main(String[] args) throws InterruptedException { for (int i = 10; i >= 0; i--) { System.out.println(i); //write your code here try { Thread.sleep(100); } catch(InterruptedException e){ if(Thread.interrupted()){ throw new InterruptedException() ; } } } } }

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LuisRC

Nivel 39 , Gijón, Spain

4 diciembre 2021, 10:02

Thanks a lot for your help.

Gellert Varga

Nivel 23 , Szekesfehervar, Hungary

3 diciembre 2021, 22:48

About "The main method should not throw exceptions":

public static void main(String[] args) throws Exception // this main() throws exceptions
public static void main(String[] args)  // this main() do not throw any exception

If the critical point of the code is wrapped in a try-catch structure, then the method containing it need not contain a 'throws' clause, because the method will not be forced to ever pass an exception. Because the exception will always be caught inside the method, in the catch block. If, on the other hand, there is no catch block that can catch an exception, then the method should be able to pass it up the chain to the caller so that it can be caught somewhere down the line. In this case you have to write a 'throws' clause for the method.

Gellert Varga

Nivel 23 , Szekesfehervar, Hungary

3 diciembre 2021, 22:56

Thread.sleep(100) is a critical point that can throw an exception. You must either catch it in a catch block, or you should be able to pass it upwards with the 'throws' clause of the containing method. There is no need to do both solution at the same time.