Here is my code: public class CalendarAssignment { /** * Error to output if year

Question

Here is my code:

public class CalendarAssignment {
   /**
   * Error to output if year is not positive
   */
   static final String E_YEAR = "The year must be positive!";

   /**
   * Error to output if the day is not between 0 and 6
   */
   static final String E_DAY = "The day of January 1st must be between 0 and 6!";

   /**
   * Determines if an input is a leap year
   *
   * @param year
   * year in question
   * @ereturn true if a leap year
   */
   public static boolean isLeapYear( int year ) {
       boolean leapyear = false;
       if ( year % 4 == 0 ) {
           if ( year % 100 == 0 ) {
               if ( year % 400 == 0 ) {
                   return !leapyear;
               };
           } else {
               return !leapyear;
           }
       }
       return leapyear; // TODO: replace with your code
   }

   /**
   * Outputs a month to the console
   *
   * @param month
   * title
   * @param startDay
   * 0=Sunday ... 6=Saturday
   * @param numDays
   * number of days in the month
   * @return day of the week of the last day of the month
   */
  
   public static int printMonth( String month, int startDay, int numDays ) {
       System.out.println( month );
       int nextLine = 1;
       for (int j = numDays, s = 1; j > 0; ) {
           if (startDay >= 1 ) {
               for ( int i = 0; i < startDay; i++ ) {
                   System.out.print(" ");
                   nextLine++;
               }
               startDay = 0;
           } else {
               if ( s < 10 )
                   System.out.print( " " + s );
               if ( s >= 10 )
                   System.out.print( " " + s );
               nextLine++;
               j--;
               s++;
           }
           if (nextLine > 7) {
               System.out.println( "" );
               nextLine = 1;
       }
   }
       return nextLine-1;
   }
  
   /**
   * Program execution point: input year, day of the week (0-6) of january 1
   * output calendar for that year
   *
   * @param args
   * command-line arguments (ignored)
   */
   public static void main(String[] args) {
   Scanner input = new Scanner(System.in);

       System.out.print("Enter the year: ");

       int year = input.nextInt();

       System.out.print("Enter the day of the week of January 1st (0=Sunday, 1=Monday, ... 6=Saturday): ");

       int firstDay = input.nextInt();

       if (year<=0) {

       System.out.println("The year must be positive!");

       System.exit(0);

       }

       if (firstDay<0 || firstDay>6) {

       System.out.println("The day of January 1st must be between 0 and 6!");

       System.exit(0);

       }

       int numFebDays;

       if (isLeapYear(year)) {

       numFebDays = 29;

       } else {

       numFebDays = 28;

       }

       int lastDayOfWeek;

       lastDayOfWeek = printMonth("January", firstDay, 31);
       System.out.println();

       lastDayOfWeek = printMonth("February", lastDayOfWeek, numFebDays);
       System.out.println();

       lastDayOfWeek = printMonth("March", lastDayOfWeek, 31);
       System.out.println();
       System.out.println();

       lastDayOfWeek = printMonth("April", lastDayOfWeek, 30);
       System.out.println();
       System.out.println();

       lastDayOfWeek = printMonth("May", lastDayOfWeek, 31);
       System.out.println();
       System.out.println();

       lastDayOfWeek = printMonth("June", lastDayOfWeek, 30);
       System.out.println();
       System.out.println();

       lastDayOfWeek = printMonth("July", lastDayOfWeek, 31);
       System.out.println();
       System.out.println();

       lastDayOfWeek = printMonth("August", lastDayOfWeek, 31);
       System.out.println();
       System.out.println();

       lastDayOfWeek = printMonth("September", lastDayOfWeek, 30);
       System.out.println();
       System.out.println();

       lastDayOfWeek = printMonth("October", lastDayOfWeek, 31);
       System.out.println();

       lastDayOfWeek = printMonth("November", lastDayOfWeek, 30);
       System.out.println();
       System.out.println();

       lastDayOfWeek = printMonth("December", lastDayOfWeek, 31);
       System.out.println();
       System.out.println();
}
}

Any help would be greatly appreciated. Thanks!!

Enter the year: 2015 Enter the day of the week of January 1st (e-Sunday, 1-Monday6-Saturday): 4 January nday, 6-Saturday): 4 1 2 3 4 5 6 78 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 February 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 March 1 2 3 4 5 6 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 3 31 April 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 May

Explanation / Answer

import java.util.Scanner;

public class CalendarAssignment {

   /**

   * Error to output if year is not positive

   */

   static final String E_YEAR = "The year must be positive!";

   /**

   * Error to output if the day is not between 0 and 6

   */

   static final String E_DAY = "The day of January 1st must be between 0 and 6!";

   /**

   * Determines if an input is a leap year

   *

   * @param year

   * year in question

   * @ereturn true if a leap year

   */

   public static boolean isLeapYear( int year ) {

   boolean leapyear = false;

   if ( year % 4 == 0 ) {

   if ( year % 100 == 0 ) {

   if ( year % 400 == 0 ) {

   return !leapyear;

   };

   } else {

   return !leapyear;

   }

   }

   return leapyear; // TODO: replace with your code

   }

   /**

   * Outputs a month to the console

   *

   * @param month

   * title

   * @param startDay

   * 0=Sunday ... 6=Saturday

   * @param numDays

   * number of days in the month

   * @return day of the week of the last day of the month

   */

  

   public static int printMonth( String month, int startDay, int numDays ) {

   System.out.println( month );

   int nextLine = 1;

   for (int j = numDays, s = 1; j > 0; ) {

   if (startDay >= 1 ) {

   for ( int i = 0; i < startDay; i++ ) {

   System.out.print(" ");

   nextLine++;

   }

   startDay = 0;

   } else {

   if ( s < 10 )

   System.out.print( " " + s );

   if ( s >= 10 )

   System.out.print( " " + s );

   nextLine++;

   j--;

   s++;

   }

   if (nextLine > 7) {

   System.out.println( "" );

   nextLine = 1;

   }

   }

   return nextLine-1;

   }

  

   /**

   * Program execution point: input year, day of the week (0-6) of january 1

   * output calendar for that year

   *

   * @param args

   * command-line arguments (ignored)

   */

   public static void main(String[] args) {

   Scanner input = new Scanner(System.in);

   System.out.print("Enter the year: ");

   int year = input.nextInt();

   System.out.print("Enter the day of the week of January 1st (0=Sunday, 1=Monday, ... 6=Saturday): ");

   int firstDay = input.nextInt();

   if (year<=0) {

   System.out.println("The year must be positive!");

   System.exit(0);

   }

   if (firstDay<0 || firstDay>6) {

   System.out.println("The day of January 1st must be between 0 and 6!");

   System.exit(0);

   }

   int numFebDays;

   if (isLeapYear(year)) {

   numFebDays = 29;

   } else {

   numFebDays = 28;

   }

   int lastDayOfWeek;

   lastDayOfWeek = printMonth("January", firstDay, 31);

   System.out.println();

   lastDayOfWeek = printMonth("February", lastDayOfWeek, numFebDays);

   System.out.println();

   lastDayOfWeek = printMonth("March", lastDayOfWeek, 31);

   System.out.println();

   System.out.println();

   lastDayOfWeek = printMonth("April", lastDayOfWeek, 30);

   System.out.println();

   System.out.println();

   lastDayOfWeek = printMonth("May", lastDayOfWeek, 31);

   System.out.println();

   System.out.println();

   lastDayOfWeek = printMonth("June", lastDayOfWeek, 30);

   System.out.println();

   System.out.println();

   lastDayOfWeek = printMonth("July", lastDayOfWeek, 31);

   System.out.println();

   System.out.println();

   lastDayOfWeek = printMonth("August", lastDayOfWeek, 31);

   System.out.println();

   System.out.println();

   lastDayOfWeek = printMonth("September", lastDayOfWeek, 30);

   System.out.println();

   System.out.println();

   lastDayOfWeek = printMonth("October", lastDayOfWeek, 31);

   System.out.println();

   lastDayOfWeek = printMonth("November", lastDayOfWeek, 30);

   System.out.println();

   System.out.println();

   lastDayOfWeek = printMonth("December", lastDayOfWeek, 31);

   System.out.println();

   System.out.println();

}

}

Related Questions

Navigate

• Browse (All)
• Browse H
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.