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

1. Notice that variables have been declared for you.
2. Write the simulated housekeeping() method that contains input statements to retrieve a yearString, a monthString, and a dayString from the user.
3. Add statements to the simulated housekeeping() method that convert the String representation of the year, month, and day to ints.
4. 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.

5. Execute the program entering the following date:

   month = 5, day = 32, year =2014

   Observe the output of this program.
6. Execute the program entering the following date:

   month = 9, day = 21, year = 2002

   Observe the output of this program.

/* Program Name: BadDate.java Function: This program determines if a date entered by the user is valid. Input: Interactive Output: Valid date is printed or user is alerted that an invalid date was entered. */ import javax.swing.JoptionPane; public class BadDate { private static final int MINIMUM_YEAR = 0, MINIMUM_MONTH = 1, MAXIMUM_MONTH = 12, MINIMUM_DAY = 1, MAXIMUM_DAY = 31; private int year = 0; private int month = 0; private int day = 0; public void housekeeping() { string yearData = JOptionPane.showInputDialog("Enter year"); String monthData = JOptionPane.showInputDialog("Enter month"); String dayData = JOptionPane.showInputDialog("Enter day"); this.year = Integer.parseInt(yearData); this.month = Integer.parseInt(monthData); this.day = Integer.parseInt(dayData); } public boolean isLeapYear() { if(((this.year % 400) 0) || (((this.year % 4) == 0) && ((this.year % 100) != 0))) return true; return true; else return false; } public void endofJob() { boolean validDate = true; if((month