import java.util.InputMismatchException; import java.util.Scanner; public class Sleep { public static void main(final String[] args) throws InterruptedException { try { int ms = new Scanner(System.in).nextInt(); //Java's sleep method accepts milliseconds System.out.println("Sleeping..."); Thread.sleep(ms); System.out.println("Awake!"); } catch (InputMismatchException inputMismatchException) { System.err.println("Exception: " + inputMismatchException); } } }