Writing a Modular Program in Java Summary
In this lab, you add the input and output statements to a partially completed Java program. When completed, the user should be able to enter a year, a month, and a day to determine if the date is valid. Valid years are those that are greater than 0, valid months include the values 1 through 12, and valid days include the values 1 through 31.

Instructions

Notice that variables have been declared for you.

Write the simulated housekeeping() method that contains input statements to retrieve a yearString, a monthString, and a dayString from the user.

Add statements to the simulated housekeeping() method that convert the String representation of the year, month, and day to ints.

Include the output statements in the simulated endOfJob() method. The format of the output is as follows:month/day/year is a valid date. or month/day/year is an invalid date.

Execute the program entering the following date:month = 5, day = 32, year =2014Observe the output of this program.

Execute the program entering the following date:month = 9, day = 21, year = 2002Observe the output of this program.

/* Program Name: BadDate. java 

   Function: This program determi nes if a date entered by the user i s valid.  

   Input:  Interactive

   Output: Valid date is printed  or user is alerted that an invalid  date was entered.

*/  

import java. util. Scanner;

public class BadDate

{

   public static void main(String  args[])

   { 

     // Declare variables

     

     String yearString;

     String monthString;

     String dayString;

     int year;

     int month;

     int day;

     boolean validDate = true;

     final int MIN_YEAR = 0, MIN_ MONTH = 1, MAX_MONTH = 12, MIN_DAY  = 1, MAX_DAY = 31; 

     // This is the work of the h ousekeeping() method

     // Get the year, then the mo nth, then the day

     Scanner input = new Scanner( System. in);

     // variable = input. nextLine();

     

     // Convert Strings to intege rs

     

     // This is the work of the d etailLoop() method

     // Check to be sure date is  valid

     if( year <= MIN_YEAR )  / / invalid year

      validDate = false;

     else if ( month < MIN_MON TH || month > MAX_MONTH )  // in valid month

      validDate = false;

     else if ( day < MIN_DAY | | day > MAX_DAY ) // invalid day

      validDate = false; 

     

     // This is the work of the e ndOfJob() method

     // Test to see if date is va lid and output date and whether it  is valid or not

     if( validDate == true )

     { 

   // Output statement 

     }

     else

     {

   // Output statement 

   

     }

     

   } // end of main() method

} // end of BadDate class