import java.util.* ;
 
public class DateTest {
 
   public static void main(String [] args) {
      int year, month, date ;
      year = 2001 ;
      month = 11 ;
      date = 40 ;
  
      try {
         Calendar cal = Calendar.getInstance() ;
         cal.set(year, month, date) ;
 
         if (cal.get(Calendar.YEAR) == year &&
             cal.get(Calendar.MONTH) == month &&
             cal.get(Calendar.DATE) == date ) {
            System.out.println("Valid date!") ;
         } else {
            System.out.println("Invalid date!");
         }
      } catch (Exception e) {
         e.printStackTrace() ;
      }
   }
}