Homework SourseAssignment Description Write a C program for keeping a cours
Assignment Description:
Write a C++ program for keeping a course list for each student in a college. Information about each student should be kept in an object that contains the student id (four digit integer), name (string), and a list of courses completed by the student.
The course taken by a student are stored as a linked list in which each node contain course name (string such as CS41, MATH10), course unit (1 to 4) and the course grade (A,B,C,D,F).
The program provides a MENU with choices that include adding a student record, deleting a student record, adding a single course record to a student’s record, deleting a single course record from a student’s record, and print a student’s record to a screen.
A student record should include a GPA (Grade Point Average) when display on the screen. The GPA is calculated by following formula:
When the user is through with the program, the program should store the records in a file. The next time the program is run, the records should be read back out of the file and the list should be reconstructed
You will need to implement a List container to hold a list of student records, each of which has a List container as its member. Note that no duplicate items should be permitted in either (student and course) List container.
Develop a test driver program that allow options to add, remove, and display student records and the course list of each student.
Use the class template technique (in C++) to implement a List ADT that could be used for both student list and the course list..
To calculate G.P.A. for one term:
Multiply the point value of the letter grade (A=4, B=3, C=2, D=1, F=0) by the number of credit hours. The result is the grade points (quality points) earned.
Total the credit hours for the student; total the quality points for the student.
Divide the total quality points by the total credit hours.
Solution
#include<stdio.h>
struct student
{
int rollno;
char name[30];
float mark;
}stud;
// FUNCTION TO INSERT RECORDS TO THE FILE
void insert()
{
FILE *fp;
fp=fopen(\"Record\",\"a\");
printf(\"Enter the Roll no :\");
scanf(\"%d\",&stud.rollno);
printf(\"Enter the Name :\");
scanf(\"%s\"&stud.name);
printf(\"Enter the mark :\");
scanf(\"%f\",&stud.mark);
fwrite(&stud,sizeof(stud),1,fp);
fclose(fp);
}
// FUNCTION TO DISPLAY RECORDS
void disp()
{
FILE *fp1;
fp1=fopen(\"Record\",\"r\");
printf(\"\ Roll Number\\tname\\tMark\ \ \");
while(fread(&stud,sizeof(stud),1,fp1));
printf(\"%d\\t\\t%s\\t%.2f\ \",stud.rollno,stud.name,stud.mark);
fclose(fp1);
}
// FUNCTION TO SEARCH THE GIVEN RECORD
void search()
{
FILE *fp2;
int r,s,avl;
printf(\"\ Enter the Roll no you want to search :\");
scanf(\"%d\",&r);
avl=avlrollno(r);
if(avl==0)
printf(\"Roll No %d is not avilable in the file\ \");
else
{
fp2=fopen(\"Record\",\"r\");
while(fread(&stud,sizeof(stud),1,fp2))
{
s=stud.rollno;
if(a==r)
{
printf(\"\ Roll no = %d\",stud.rollno);
printf(\"\ Name = %s\"stud.name);
printf(\"\ Mark = %.2f\",stud.mark);
}
}
fclose(fp2);
}
}
// FUNCTION TO DELETE A RECORD
void deletef()
{
FILE *fp;
FILE *fpt;
int r,s;
printf(\"Enter the Roll no you want to delete :\");
scanf(\"%d\",&r);
if(avlrollno(r)==0)
printf(\"Roll no %d is not available in the file\ \");
else
{
fpo=fopen(\"Record\",\"r\");
fpt=fopen(\"TempFile\",\"w\");
while(fread(&stud,sizeof(stud),1,fpo))
{
a=stud.rollno;
if(s!=r)
fwrite(&stud,sizeof(stud),1,fpt);
}
fclose(fpo);
fclose(fpt);
fpo=fopen(\"Record\",\"w\");
fpt=fopen(\"TempFile\",\"r\");
while(fread(&)stud,sizeof(stud),1,fpt)
fwrite(&stud,sizeof(stud),1,fpo);
printf(\"\ RECORD DELETE\ \");
}
fclose(fpo);
fclose(fpt);
}
// FUNCTION TO UPDATE THE RECORD
void update()
{
int avl;
FILE *fpt;
FILE *fpo;
int s,r,ch;
printf(\"enter roll number to update\");
scanf(\"%d\",&r);
avl=avlrollno(r);
if(avl==0)
{
printf(\"roll number %d is not Available in the file\",r);
}
else
{
fpo=fopen(\"Record\",\"r\");
fpt=fopen(\"TempFile\",\"w\");
while(fread(&stud,sizeof(stud),1,fpo))
{
s=stud.rollno;
if(s!=r)
fwrite(&stud,sizeof(stud),1,fpt);
else
{
printf(\"\ \\t1_UPDATE THE NAME OF ROLL NUMBER %d\",r);
printf(\"\ \\t1_UPDATE THE MARK OF ROLL NUMBER %d\",r);
printf(\"\ \\t1_UPDATE BOTH NAME AND MARK OF ROLL NUMBER %d\",r);
PRINTF(\"\\N\\N eNTER YOUR CHOICE\");
scanf(\"%d\",&ch);
switch(ch)
{
case 1:
printf(\"Enter Name : \");
scanf(\"%d\",stud.name);
` break;
case 2:
printf(\"Enter Mark : \");
scanf(\"%d\",&stud.mark);
break;
case 3:
printf(\"Enter Name and Mark: \");
scanf(\"%d\",stud.name,&stud.mark );
break;
default:
printf(\"Invalid Selection\");
break;
}
fwrite(&stud,sizeof(stud),1,fpt);
}
}
fclose(fpo);
fclose(fpt);
fpo=fopen(\"Record\",\"w\");
fpt=fopen(\"TempFile\",\"r\");
while(fread(&stud,sizeof(stud),1,fpt))
{
fwrite(&stud,sizeof(stud),1,fpo);
}
fclose(fpo);
fclose(fpt);
printf(\"RECORD UPDATED\");
}
}
/* FUNCTION TO SORT THE RECORD */
void sort()
{
int a[20],count=0,i,j,t,c;
FILE *fpo;
fpo=fopen(\"Record\",\"r\");
while(fread(&stud,sizeof(stud),1,fpo))
{
a[count]=stud.rollno;
count++;
}
c=count;
for(i=0;i<count-1;i++)
{
for(j=i+1;j<count;j++)
{
if(a[i]>a[j])
{
t=a[i];
a[i]=a[j];
a[j]=t;
}
}
}
printf(\"Roll no.\\tName\\t\\tMar\ \ \");
count=c;
for(i=0;i<count;i++)
{
rewind(fpo);
while(fread(&stud,sizeof(stud),1,fpo))
{
if(a[i]==stud.rollno)
printf(\"\ %d\\t\\t %s \\t\\t %2f\",stud.name,stud.mark);
}
// FUNCTION TO CHECK GIVEN ROLL NO IS AVAILABLE //
int avLrollno(int rno)
{
FILE *fp;
int c=0;
fp=fopen(\"Record\",\"r\");
while(!feof(fp))
{
fread(& NAME :shahul rollno:46 stud,sizeof(stud),1,fp);
if(rno==stud.rollno)
{
fclose(fp);
return 1;
}
}
fclose(fp);
return 0;
}
//FUNCTION TO CHECK THE FILE IS EMPTY OR NOT
int empty()
{
int c=0;
FILE *fp;
fp=fopen(\"Record\",\"r\");
while(fread(&stud,sizeof(stud),1,fp))
c=1;
fclose(fp);
return c;
}
// MAIN PROGRAM
{
int c,emp,empty();
do
{
printf(\"\ \\t---Select your choice---------\ \");
printf(\"\ \\t1. INSERT\ \\t2.DISPLAY\ \\t3. SEARCH\");
printf(\"\ \\t4. DELETE\ \\t5.UPDATE\ \\t6.SORT\");
printf(\"\ \\t7. EXIT\");
printf(\"\ \ ------------------------------------------\ \");
printf(\"\ Enter your choice:\"0;
scanf(\"%d\",&c);
printf(\"\ \");
switch(c)
{
case 1:
insert();
break;
case 2
emp=empty();
if(emp==0)
printf(\"\ The file is EMPTY\ \");
else
disp();
break;
case 3:
search();
break;
case 4:
delete();
break;
case 5:
update();
break;
case 6:
emp=empty();
ifemp==0()
printf(\"\ The file is EMPTY\ \");
else
sort();
break;
case 7:
exit(0);
default:
printf(\"\ Your choice is wrong\ Please try again...\ \");
break;
}
}while(c!=7);
}
