CMSC104 Section 6080 Project 1

CMSC104, Summer 2004

Programming Project 1

Grade Calculation Program

Out: Thursday, June 24, 2004
Due: Wednesday, June 30, 2004 before 11:59 p.m.

The Objective

This project is designed to give you practice writing a C program on your own. You will also gain experience taking pseudocode you have written and writing the corresponding code. In addition to writing the program, you will answer several questions relating to your project and your chosen implementation.

The Task (90 points)

Your job is to write a grade calculating program for CMSC104. You should use the pseudocode portion of your answer for question 2 of Homework 2. As in the pseudocode, you do not have to do any error checking of user input. In addition to printing the average, you should also determine the letter grade that corresponds to the numerical average based on the following scale: 
     90% <= A <= 100% 
     80% <= B <   90% 
     70% <= C <   80% 
     60% <= D <   70% 
      0% <= F <   60%
When figuring the letter grade, you should round the number up if the decimal portion is .5 and above.

Sample Output

linux2[14]% gcc -ansi -Wall proj1.c

linux2[15]% a.out

Welcome to the CMSC104 grade calculation program. This
program will calculate the final average and course
grade for a student in CMSC104. Each homework is
worth 4%, each project is worth 7% and each exam is
worth 20%.

Enter the homework 1 score: 100
Enter the homework 2 score: 80
Enter the homework 3 score: 100
Enter the project 1 score: 75
Enter the project 2 score: 90
Enter the project 3 score: 99
Enter the project 4 score: 100
Enter the exam 1 score: 92
Enter the exam 2 score: 80
Enter the exam 3 score: 81


With an average of 87.28, your course grade is a B.

Thank you for using the grade calculation program!

linux2[16]%

Project 1 Questions (10 points)

You should create a text file called p1questions.txt and type your answers to the following questions:
  1. Do you feel your program is robust? The project description does not require error checking of user input, but should it have? If so, which conditions would you have checked for?

  2. Do you feel the program functions sufficiently as is? Would you make any additional improvements to the program? Consider the difference if the user of the program was a student versus the instructor. Might there be a need for different functionality?
Your answers should be in complete sentences but need not be more than 4 or 5 sentences in length. You should submit the text file when you submit your program.

Submitting the Program

Your program should be in a file called proj1.c.

Here is a sample submission command. Note that the project name starts with uppercase 'P'.

submit cs104 Proj1 proj1.c p1questions.txt

To verify that your project was submitted, you can execute the following command at the Unix prompt. It will show the file that you submitted in a format similar to the Unix 'ls' command.

submitls cs104 Proj1