[text] Student Management System

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copy download embed printName: Student Management System

#include<stdio.h>
#include<string.h>
#include <stdlib.h>
#include <time.h>
#define SIZE 100
#define true 0
#define false 1
struct student
{
char stdid[SIZE];
char name[SIZE];
int lvl;
double sum, eng, math, sci, his, fil, genav;
};
struct student st[SIZE];
int count = 0;
FILE *f;
int writefile()
{
int i;
f = fopen("sms.txt", "w");
if (f == NULL)
return -1;
fprintf(f, "%d\n", count);
for (i = 0; i < count; ++i)
{
fputs(st[i].stdid, f);
fprintf(f, "\n");
fputs(st[i].name, f);
fprintf(f, "\n");
fprintf(f, "%d\n", st[i].lvl);
fprintf(f, "\n");
fprintf(f, "%.2lf\n", st[i].eng);
fprintf(f, "%.2lf\n", st[i].math);
fprintf(f, "%.2lf\n", st[i].sci);
fprintf(f, "%.2lf\n", st[i].his);
fprintf(f, "%.2lf\n", st[i].fil);
}
fclose(f);
return 0;
}
int readFile()
{
int n = 0;
int i;
f = fopen("sms.txt", "r");
if (f == NULL)
return -1;
fscanf(f, "%d\n", &n);
for (i = 0; i < n; ++i)
{
fgets(st[count].stdid, SIZE, f);
st[count].stdid[strlen(st[count].stdid) - 1] = 0;
fgets(st[count].name, SIZE, f);
st[count].name[strlen(st[count].name)-1] = 0;
fscanf(f, "%d", &st[count].lvl);
fscanf(f, "%lf", &st[i].eng);
fscanf(f, "%lf", &st[i].math);
fscanf(f, "%lf", &st[i].sci);
fscanf(f, "%lf", &st[i].his);
fscanf(f, "%lf\n", &st[i].fil);
}
fclose(f);
return n;
}
void delay(int number_of_seconds)
{
int milli_seconds = 1000 * number_of_seconds;
clock_t start_time = clock();
while (clock() < start_time + milli_seconds);
}
void deletestudent()
{
count=readFile();
char stdid[SIZE];
int i,j;
int z=false;
printf("ENTER ID YOU WANT TO DELETE: ");
fflush(stdin);
gets(stdid);
for(i=0;i<count;i++)
{
z=true;
if(strcmp(st[i].stdid,stdid)==0)
{
for( j=i; j<(count-1); j++)
{
st[j]=st[j+1];
}
printf("\nSTUDENT HAS BEEN REMOVED SUCCESSFULLY!");
count--;
}
}
if(z==false)
{
printf("STUDENT ID NOT FOUND!");
}
writefile();
}
int IDChecker (int i, int j)
{
count=readFile();
printf("\nSTUDENT ID: ");
fflush(stdin);
gets(st[count].stdid);
if (strcmp(st[i].stdid,st[j].stdid)==0)
{
printf("ID NUMBER IS ALREADY TAKEN!");
return IDChecker(i++,j--);
}
}
void addnewstudent()
{
readFile();
if (count>0)
{
count=readFile();
IDChecker(0,count);
}
else
{
printf("\nSTUDENT ID: ");
fflush(stdin);
gets(st[count].stdid);
}
printf("FULL NAME: ");
gets(st[count].name);
printf("GRADE LEVEL(1-6): ");
scanf("%d", &(st[count].lvl));
++count;
writefile();
}
int checkID(char stdid[])
{
int i;
count=readFile();
readFile();
for(i=0;i<count;i++)
{
if(strcmp(stdid,st[i].stdid)!=0)
{
fclose(f);
}
return 1;
}
fclose(f);
return 0;
}
void displayallstudents()
{
int i;
count = readFile();
printf("\n");
printf("\n");
printf("\n\t\t\t\t STUDENT NAME\t-\tSTUDENT ID\t-\tGRADE LEVEL");
printf("\n\t\t\t ----------------------------------------------------------------------\n");
printf("\n");
printf("\n");
for (i=0;i<count;i++)
{
printf("\t\t\t\t%s\t-\t%s\t-\t%d\t\n", st[i].name, st[i].stdid, st[i].lvl) ;
}
}
void inputgrades()
{
char stdid[SIZE];
int test;
int i;
int choice;
printf("ENTER STUDENT ID: ");
fflush(stdin);
gets(stdid);
test=checkID(stdid);
if (test == 0)
{
printf("STUDENT ID NOT FOUND");
}
else
{
readFile();
{
for(i=0;i<count;i++)
{
if(strcmp(stdid,st[i].stdid)!=0)
writefile();
else
{
printf("\nFULL NAME: %s", st[i].name);
printf("\nSTUDENT ID: %s", st[i].stdid);
printf("\nGRADE LEVEL: %d", st[i].lvl);
printf("\n\nREPORT CARD:\n\n");
printf("ENGLISH:\t");
scanf("%lf", &(st[i].eng));
printf("MATH:\t\t");
scanf("%lf", &(st[i].math));
printf("SCIENCE:\t");
scanf("%lf", &(st[i].sci));
printf("HISTORY:\t");
scanf("%lf", &(st[i].his));
printf("FILIPINO:\t");
scanf("%lf", &(st[i].fil));
}
writefile();
}
}
}
fclose(f);
f = fopen("sms.txt", "r");
readFile();
{
writefile();
}
fclose(f);
}
void viewgrades()
{
char stdid[SIZE];
int test;
int i;
int choice;
printf("ENTER STUDENT ID: ");
fflush(stdin);
gets(stdid);
test=checkID(stdid);
if (test == 0)
{
printf("STUDENT ID NOT FOUND");
}
else
{
readFile();
{
for(i=0;i<count;i++)
{
if(strcmp(stdid,st[i].stdid)!=0)
writefile();
else
{
printf("\nWELCOME TO %s's PROFILE!\n", st[i].name);
printf("\nFULL NAME: %s", st[i].name);
printf("\nSTUDENT ID: %s", st[i].stdid);
printf("\nGRADE LEVEL: %d", st[i].lvl);
printf("\n\nREPORT CARD:\n\n");
printf("SUBJECT\t\t|\tGRADE\t\t|\tREMARKS");
printf("\n----------------------------------------------------------------------\n");
printf("\nENGLISH\t\t|\t%.2lf\t\t|\t", st[i].eng);
if (st[i].eng < 75)
{
printf("FAILED\n");
}
else
{
printf("PASSED\n");
}
printf("MATH\t\t|\t%.2lf\t\t|\t", st[i].math);
if (st[i].math < 75)
{
printf("FAILED\n");
}
else
{
printf("PASSED\n");
}
printf("SCIENCE\t\t|\t%.2lf\t\t|\t", st[i].sci);
if (st[i].sci < 75)
{
printf("FAILED\n");
}
else
{
printf("PASSED\n");
}
printf("HISTORY\t\t|\t%.2lf\t\t|\t", st[i].his);
if (st[i].his < 75)
{
printf("FAILED\n");
}
else
{
printf("PASSED\n");
}
printf("FILIPINO\t|\t%.2lf\t\t|\t", st[i].fil);
if (st[i].fil < 75)
{
printf("FAILED\n");
}
else
{
printf("PASSED\n");
}
printf("----------------------------------------------------------------------\n");
st[i].sum = st[i].eng + st[i].math + st[i].sci + st[i].his + st[i].fil;
st[i].genav = st[i].sum / 5;
printf("GENERAL AVERAGE\t|\t%.2lf\t\t|\t", st[i].genav);
if (st[i].genav < 75)
{
printf("FAILED\n");
}
else
{
printf("PASSED\n");
}
writefile();
}
}
}
fclose(f);
f = fopen("sms.txt", "r");
readFile();
{
writefile();
}
fclose(f);
}
}
void editstudent()
{
char stdid[SIZE];
int test;
int i;
int choice;
printf("ENTER STUDENT ID: ");
fflush(stdin);
gets(stdid);
test=checkID(stdid);
if (test == 0)
{
printf("STUDENT ID NOT FOUND");
}
else
{
readFile();
{
for(i=0;i<count;i++)
{
if(strcmp(stdid,st[i].stdid)!=0)
writefile();
else
{
printf("\nWHAT DO YOU WANT TO UPDATE?\n\n");
printf("<1> STUDENT ID\n");
printf("<2> FULL NAME\n");
printf("<3> GRADE LEVEL\n");
printf("<4> ENGLISH GRADE\n");
printf("<5> MATH GRADE\n");
printf("<6> SCIENCE GRADE\n");
printf("<7> HISTORY GRADE\n");
printf("<8> FILIPINO GRADE\n");
printf("<9> UPDATE ALL INFORMATION OF STUDENT\n");
printf("\nCHOOSE TASK TO PERFORM: ");
fflush(stdin);
scanf("%d", &choice);
switch (choice)
{
case 1:
printf("STUDENT ID: ");
fflush(stdin);
gets(st[i].stdid);
break;
case 2:
printf("FULL NAME: ");
fflush(stdin);
gets(st[i].name);
break;
case 3:
{
int c=10;
int lvl;
while (c!=0)
{
printf("\nGRADE LEVEL(1-6): ");
scanf("%d", &(st[i].lvl));
if ((st[i].lvl)>=1 && (st[i].lvl)<=6)
{
c=0;
}
else
{
printf("\nSORRY, YOU HAVE ENTERED AN INVALID NUMBER. PLEASE TRY AGAIN.\n");
}
printf("\n");
}
}
break;
case 4:
printf("\nENGLISH GRADE: ");
scanf("%lf", &(st[i].eng));
break;
case 5:
printf("\nMATH GRADE: ");
scanf("%lf", &(st[i].math));
break;
case 6:
printf("\nSCIENCE GRADE: ");
scanf("%lf", &(st[i].sci));
break;
case 7:
printf("\nHISTORY GRADE: ");
scanf("%lf", &(st[i].his));
break;
case 8:
printf("\nFILIPINO GRADE: ");
scanf("%lf", &(st[i].fil));
break;
default:
printf("YOU HAVE ENTERED AN INVALID NUMBER.");
break;
}
writefile();
}
}
}
fclose(f);
f = fopen("sms.txt", "r");
readFile();
{
writefile();
}
fclose(f);
printf("PROFILE UPDATED");
}
}
int main ()
{
int a=10;
int id;
char name[SIZE];
char pswd[SIZE];
system("color F6");
printf("\n");
printf("\n");
printf("\n");
printf("\t\t O==========================================================O\n");
printf("\t\t | OUR LADY OF FATIMA UNIVERISTY - VALENZUELA CITY CAMPUS |\n");
printf("\t\t | |");
printf("\n\t\t | WELCOME TO THE INSTRUCTOR PORTAL! |\n");
printf("\t\t O==========================================================O\n");
printf("\n");
printf("\n");
printf("\n");
while (a!=0)
{
char un[SIZE];
char pswd[SIZE];
printf("\n\t\t\t\t\t\t USERNAME: ");
scanf("%s", un);
printf("\t\t\t\t\t\t PASSWORD: ");
scanf("%s", pswd);
if (strcmp(un, "olfu") == 0 && strcmp(pswd, "ccs") == 0)
{
printf("\n\t\t\t\t\tLOGIN SUCCESSFUL! PLEASE WAIT A MOMENT...");
a=0;
delay(2);
system("cls");
}
else
{
printf("\n\t\t\t THE USERNAME AND/OR PASSWORD IS INCORRECT. PLEASE TRY AGAIN IN 3 SECONDS.");
delay(3);
system("cls");
}
printf("\n");
}
int choice;
while (1)
{
printf("\n");
printf("\n");
printf("\n\t\t O==================STUDENT MANAGEMENT SYSTEM==================O");
printf("\n\t\t\t\t| |");
printf("\n\t\t\t\t| <1> ADD A NEW STUDENT\t\t\t |\n");
printf("\t\t\t\t| <2> SHOW STUDENT LIST\t\t\t |\n");
printf("\t\t\t\t| <3> INPUT STUDENT'S GRADES\t\t |\n");
printf("\t\t\t\t| <4> VIEW STUDENT'S GRADES\t\t |\n");
printf("\t\t\t\t| <5> EDIT STUDENT PROFILE\t\t |\n");
printf("\t\t\t\t| <6> DELETE A STUDENT\t\t\t |\n");
printf("\t\t\t\t| <7> EXIT\t\t\t\t |");
printf("\n\t\t\t\t| |");
printf("\n\t\t O=============================================================O\n");
printf("\n");
printf("\n");
printf("\n\t\t\t\t\t CHOOSE A TASK TO PERFORM (1-7): ");
scanf("%d", &choice);
switch(choice)
{
case 1: addnewstudent();
break;
case 2: displayallstudents();
break;
case 3: inputgrades();
break;
case 4: viewgrades();
break;
case 5: editstudent();
break;
case 6: deletestudent();
break;
case 7: exit(1);
break;
default:
printf("YOU HAVE ENTERED AN INVALID VALUE");
break;
}
}
while(choice!=8);
}

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Student Management System
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02 Dec-2022
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