// SafeDateTester.java    
// Based upon the UseSafeDate application by Dale/Joyce/Weems (Chapter 1)
//
// Authors: Dale/Joyce/Weems, R. McCloskey,
//          and lab team members .....
// Known Defects: ...
//
// This application prompts the user to enter a calendar date, as described
// by integers identifying the date's month, day, and year.  If the values
// entered describe a valid calendar date, that date is displayed in the
// standard M/D/Y format (e.g., "5/14/1972") along with a message indicating
// that it is valid, and the program terminates.  If the entered values do
// not describe a valid calendar date, a message indicating what is wrong
// with the input data is displayed and the user is prompted to try again.
// Thus, the program does not terminate until the user finally enters valid
// input.


import java.util.Scanner;

public class SafeDateTester {

  public static void main(String[] args)
  {
    Scanner scanner = new Scanner(System.in);
    int m, d, y;             // inputs describing a calendar date
    boolean dateOK = false;  // loop terminates when dateOK becomes true
    Date theDate;            // reference to a SafeDate object
 
    while (!dateOK)
    {
      // Prompt the user to enter integer values describing the 
      // month, day, and year of a calendar date.
      System.out.println("Enter a date...");
      System.out.print("  Month: ");
      m = scanner.nextInt();  // read month #
      System.out.print("  Day: ");
      d = scanner.nextInt();  // read day #
      System.out.print("  Year: ");
      y = scanner.nextInt();  // read year #

      try {

        // Create a SafeDate object, using the inputs to determine
        // the calendar date that it represents.
        theDate = new SafeDate(m, d, y);

        // for the purpose of preventing any more loop iterations
        dateOK = true;

        // Report that the SafeDate object was created successfully.
        System.out.println(theDate + " is a safe date.");
      }
      catch(DateOutOfBoundsException dobExcept) {
        System.out.println(dobExcept.getMessage() + "\n");
      }

    } // end of while loop body
  } // end of main()
}