Homework 2
Display a Calendar

Due: Tuesday, November 6 at 5pm

Outcomes

• Design a well-structured program that contains nested selection and iteration constructs
• Use formatting strings and conversion specifiers to do I/O in a C program

Before Starting

The Assignment

• 0 Sunday
• 1 Monday
• 2 Tuesday
• 3 Wednesday
• 4 Thursday
• 5 Friday
• 6 Saturday

Include files

• stdio.h provides printf() and scanf()

Assumptions and Restrictions

• Your program should validate the input entered by the user (i.e. make sure that the number representing the day that January 1 falls on is between 0 and 6, and that the leap year is a 0 or 1). Your program does not have to recover from the wrong type of input (i.e., you may assume the user enters integers).

• The use of the goto statement is not allowed. The use of the continue statement is not allowed. You may use the break statement at the end of each case within a switch statement, but the use of break is not allowed anywhere else.

  In other words, your program should be well-structured (sections 3.4, 4.12). My solution to this program is 130 lines long, including all comments, blank lines, and numerous printf statements. The number of lines in your program should be in the same vicinity. Use loops intelligently. If you find yourself writing the same calculation over and over for each month of the year, for example, you should ask yourself if that calculation should be part of a loop. (Hint: every month of the year should be processed in an identical way. In fact, the only differences between one month and another is the name of the month and the number of days in the month. Your program should consist of a main processing loop that runs 12 times, once for each month in the year. Within the main processing loop, use a switch statement (section 4.7) to display the name of the month and to set the number of days in the month. Nothing else needs to be done in your switch statement.)

• You should not use arrays in the solution for this program.

• You may define functions other than main() in your solution, but you are not required to do so.

  Sample Execution

                          MONTHLY CALENDAR
  
  This program displays a calendar.  You need to provide the day of the week
  on which January 1 falls, and indicate whether or not the year is a leap year.
  
  Enter the code number for the day of the week on which January 1 falls:
  0- Sun    1- Mon    2- Tue    3- Wed    4- Thu    5- Fri    6- Sat
  
  Enter day code now (0 - 6):  4
  
  Is the calendar for a leap year? (type 1 for yes, 0 for no): 0
  
  
  
       ***    CALENDAR   ***
  
  January
  
  Sun  Mon  Tue  Wed  Thu  Fri  Sat
                        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   31
  
  February
  
  Sun  Mon  Tue  Wed  Thu  Fri  Sat
    1    2    3    4    5    6    7
    8    9   10   11   12   13   14
                   .
                   .
                   .
  

  (output continues for all 12 months)

  Deliverables

  Write a short text file called README.txt that summarizes your program, how to run it, and detailing any assumptions and any problems you had. (You can use kwrite to create your README.txt file.)

  Make sure both your C source code file and your README.txt file contain the name(s) and WPI username(s) of the author(s) of the files.

  Submit your C source code file and your README.txt file to web-based turnin no later than 5pm on November 6. The name of the turnin project is Homework 2. Programs submitted after 5pm on November 6 will be tagged as late, and will be subject to the late homework policy.

  Grading

  This assignment is worth 20 points. Your program must compile without errors in order to receive any credit. It is suggested that before you submit your program, compile it one more time on the CCC system to make sure that it compiles correctly.
  • Correct compilation without warnings - 2 points
  • README.txt submitted as specified - 2 points
  • Program comments and formatting - 2 points
  • Month/days of week displayed correctly - 2 points
  • Newline correctly placed at end of each week - 3 points
  • Dates line up under days - 3 points
  • Calculates first day correctly for each month - 2 points
  • Program adheres to assumptions/restrictions - 4 points

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