Homework Help Forum: Computer Science-Java

Posted by Lisa on Tuesday, November 3, 2009 at 5:45pm.

Hi, I am writing an application class for a Lunar Calendar I created in a service class and I have to make sure it is able to detect that the year entered is not in the range of values(I have done this in the service class using a switch statement) and be able to detect if the year is a valid integer. I need a little help with the last one. Here is what I have so far: package classes; import java.util.InputMismatchException; import java.util.Scanner; public class LunarCalendarApp { public static void main(String[] args) { Scanner in = new Scanner(System.in); final int SENTINEL = -1; boolean validInput = false; System.out.println("Enter a year:"); int someYear = in.nextInt(); while(someYear != SENTINEL){ LunarCalendar calen = new LunarCalendar (someYear); calen.Calendar(); do { try { System.out.println("Enter a year:"); validInput = in.hasNext(); someYear = in.nextInt(); } catch (InputMismatchException e) { System.out.println("This is not an integer!"); in.next(); } }while(!validInput); } } }

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