Project#3 [40 points] COP 2220 Fall 2017

Transcription

1 Project#3 [40 points] COP 2220 Fall 2017 (Materials that you MUST review for this project) 2017 Saeed Rajput, Ph.D. Problem Requirements: Allow students to submit assignments and instructor to award grades for the assignment. Functional Specifications 1. Following information will have to be maintained about the student: a. Student Name b. Z-number c. Assignment d. Score. 2. Only one assignment will be handled. 3. Student will be able to submit assignment and review her grades. 4. Teacher will be able to find the assignments of a particular student 5. Teacher will be able to submit the grade for the assignment of the student. 6. Assignment will be represented by a string Design Specification 1. Student information will be represented in a struct called Student containing a. Student Name b. Z-number c. Assignment d. Score. 2. All variables will be contained in the main() function. Specifically variable(s) of type Student will not be a global. All functions will take a pointer to this struct variable. 3. Following functions will be implemented: a. For the Student: i. submitassignment();

2 ii. getscore(); iii. studentprint(); b. For the Teacher: i. getassignment(); ii. assignscore(); 4. When student program exits, the particular student s struc will be stored in a file named after the name of the student (we will use only first names, and assume that first names are unique). E.g. saeed.txt. a. When student program starts, it will ask the student to identify herself and load the appropropriate file if it exists. If not, the student is invited to provide information so that a record can be created. 5. When the teacher program starts, it will ask the teacher to provide the name of the student to grade. If the corresponding file exists, the struct for that student will be created and assignment for that student will be displayed. a. If the score is negative, the teacher will then be prompted to provide score for that assignment (double). The program will then save the students information back to the same file. b. If the score is positive, it means the assignment has already been graded so the score will be displayed and teacher will be prompted to see if he wants to grade the assignment again. Once the grade has been assigned, the teacher will be prompted to see if he wants to grade another student. Automatic 0 Policies Any of the following will trigger an automatic zero score for your assignment: 1. If the assignment is not loaded on both locations ( Canvas and your shared folder on google drive), you will get an automatic 0 2. Assignment does not compile. 3. Compiled program crashes when executed with the test values provided 4. Filename is not exactly as required. Submission Instructions You will submit assignment on two different locations: 1. Canvas: Submit source code (project3.c) through Canvas. assignment topic: Project 3" 2. Under your yourusername@fau.edu 's google drive, you will see a folder named " cop2220_yourfauusername " e.g. cop2220_srajput. This is a shared folder on google drive that is only visible to you, the instructor and the TA has been created. You may want to bookmark this folder for easy access in future. In that folder you will see many other subfolder, e.g. hw1, hw2,...,hw4,... and project1, project2,...

3 You should upload your project3.c file under project3 folder. Please remember, this folder is only shared between you, I and the your TA. Policies One source code file (unformatted text) will be submitted The file name must match the assignment (project3.c) [ -10 points if not] The code should be tested and executed on any c-compiler (IDE) before it is uploaded onto canvas. Please, load only one file that has.c extension. No points will be awarded if an entire project is loaded. The code must be submitted on time in order to receive credit (11:59 PM on the due date) Late submissions will not be accepted or graded, but you are required to complete all previous deliverables to get points for future deliverables. All programming assignments (unless otherwise specified) should be individual work. Sharing code is considered cheating. Feedback on Grading Rubric The grading for the project will be different from the grading for the Exams. You have plenty of time so no tolerance will be provided for silly mistakes. Item Filename is not project3.c, or not loaded on both Canvas or Google Drive Multiplicative /Additive x 0 Code does not compile x 0 Code not indented correctly Code does not follow style guide Names of functions and variables cannot be related to Specifications Prototypes not provided + -5 Constants (e.g. MAX_SIZE) not used in place of literals (e.g. 40) + -5

4 struct not defined as specified in class + -5 test() function correctly tests all the functions + 10 functions using correct signatures i.e. correct names, parameters and return types, and parameters are actually used inside the function, with no redundant parameters. + 5 print() function correctly implemented + 5 User input correctly taken and illegal values are rejected while prompting the user to enter correct values. File Input/output correct with proper error checking. Functions implement functionality according to specifications FAQs about this Homework: (HW related questions that do not belong to any specific problem above can be posted below as comments below. Highlight an available number and place your question as comment See example 1 below). Question 1: submitassignment() corrected code int submitassignment(student* pstudent){ int i=0; FILE* pfile=0; char filename[25]; printf("%s please submit the name of the assignment file:\n",pstudent->name); scanf(" %s", filename); pfile = fopen(filename,"r"); if(pfile){ while((fscanf(pfile,"%c",(pstudent->assignment+i) )!=EOF ) ){ fprintf(pfile,"%s\n",pstudent->assignment); i++; // EO while((fscanf(pfile,"%c",(pstudent->assignment+i) )!=EOF ) ) else{ printf("could not open file\n"); return 0; //File could not be read. //EO if(pfile){ //EO function submitassignment(student* pstudent){

5 State of code as of : /* * Student Name: char* * Z-number: int * Assignment: char* * score: double * */ #define NAME_SIZE 40 #define MAX_ASSIGNMENT_SIZE 4096 typedef struct { char name[name_size]; int znumber; char assignment[max_assignment_size]; double score; Student; /****** Following functions will be implemented: For the Student: submitassignment(); getscore(); studentprint(); For the Teacher: getassignment(); assignscore(); ********/ int submitassignment(student* pstudent); void print(student* pstudent); void intialize(student* pstudent, char name[], int znumber); void test(student* pstudent); int submitassignment(student* pstudent){ int i=0; FILE* pfile=0; char filename[25]; printf("%s please submit the name of the assignment file:\n",pstudent->name); scanf(" %s", filename); pfile = fopen(filename,"r"); if(pfile){ while((fscanf(pfile,"%c",(pstudent->assignment+i) )!=EOF ) && i< (MAX_ASSIGNMENT_SIZE-1) ){ //fprintf(pfile,"%s\n",pstudent->assignment); i++; // EO while((fscanf(pfile,"%c",(pstudent->assignment+i) )!=EOF )) pstudent->assignment[max_assignment_size-1] = 0; //Ensuring that the null terminator exists else{ printf("could not open file\n");

6 return 0; //File could not be read. //EO if(pfile){ //EO function submitassignment(student* pstudent){ void print(student* pstudent){ printf("%s\n",pstudent->name); printf("%d\n",pstudent->znumber); printf("%s\n",pstudent->assignment); printf("%lf\n",pstudent->score); printf("\n"); void intialize(student* pstudent, char name[], int znumber){ strcpy(pstudent->name,name); pstudent->znumber=znumber; pstudent->score = -1.0; // -1 => assignment not graded yet. void test(student* pstudent){ //strcpy(pstudent->name,"peter"); intialize(pstudent,"peter", ); //pstudent->znumber= ; submitassignment(pstudent); //strcpy(pstudent->assignment,"this is a sample assignment"); //pstudent->score=0.0; print(pstudent); int main(int argc, char **argv) { Student astudent; test(&astudent); return 0; Question 3: Gabriella Grandville In class, you had said that stuct student can be global. Is this applicable for this project? Answer : The type declarations are global, but variable declaration are not. Check out the (corrected) code we did in the class. Question 4: Danny Rios I was going over the videos, and was able to complete the videos where you coded the solutions for BankAccount, and I was able to get the deposit and save it into the file properly through your method.

7 The thing I have a problem with is setting the balance into 0 when you first print the function. for me, it prints an empty address at first, but as the get deposit works, the deposit is filled. could you help me with that? How can I show you my code? Here is the lines of code that may be where the issue is. typedef struct { char name[name_size]; double balance; BankAccount; printfunction(bankaccount *arg1){ printf(" hello %s \n", arg1->name); printf(" your amount is %0.2lf \n", arg1->balance); Answer: That is good progress. I guess you can do this (report if that works), or a better way Correct way is to write an initialize() function. typedef struct { char name[name_size]; double balance =0; BankAccount; Better: void initialize (BankAccount *paccount, char* pname){ strcpy(paccount->name,pname); paccount->balance = 0; Then before you have to invoke the initialize() function before you invoke the print() (Call it print() not printfunction). Question 5 Question 6 Question 7 Question 8 Question 9 Question 10