code: 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);
          }
      }
  }
  