include

typedef struct Student { char studentName[50]; char studentId[15]; char studentDept[10]; char studentAddress[100]; char studentContactNum[15]; float studentCGPA; } Student;

void createAccount(); void displayInfo(); void updateInfo(); void deleteInfo(); void searchInfo();

int main() { char option;

while (option != '0')
{
    system("cls");
    printf("\t\t====== Student Management System ======\n");
    printf("\n\t\t\t1. Create Student Account");
    printf("\n\t\t\t2. Display All Students Information");
    printf("\n\t\t\t3. Update Student Information");
    printf("\n\t\t\t4. Delete Student Information");
    printf("\n\t\t\t5. Search Student Information");
    printf("\n\t\t\t0. Exit");

    printf("\n\n\n\t\t\tEnter Your Option: ");
    scanf(" %c", &option);

    switch (option)
    {
    case '1':
        createAccount();
        break;
    case '2':
        displayInfo();
        break;
    case '3':
        updateInfo();
        break;
    case '4':
        deleteInfo();
        break;
    case '5':
        searchInfo();
        break;
    case '0':
        printf("\n\t\t\t====== Thank You ======");
        break;
    default:
        printf("\n\t\t\tInvalid Option, Please Enter Right Option !\n");
    }
}
return 0;

}

void createAccount() { FILE *fileOne = fopen("studentInfo.bin", "ab+");

if (fileOne == NULL)
{
    printf("\n\t\t\tError !\n");
}

Student stundentInformation;

system("cls");

printf("\t\t\t====== Create Student Account ======\n");

printf("\n\t\t\tEnter Student's Name : ");
getchar();
gets(stundentInformation.studentName);
printf("\t\t\tEnter Student's ID : ");
gets(stundentInformation.studentId);
printf("\t\t\tEnter Student's Depertment : ");
gets(stundentInformation.studentDept);
printf("\t\t\tEnter Student's Address : ");
gets(stundentInformation.studentAddress);
printf("\t\t\tEnter Student's Contact Number : ");
gets(stundentInformation.studentContactNum);
printf("\t\t\tEnter Student's Current CGPA : ");
scanf("%f", &stundentInformation.studentCGPA);

fwrite(&stundentInformation, sizeof(stundentInformation), 1, fileOne);

printf("\n\n\t\t\tInformations have been stored sucessfully\n");
printf("\n\n\t\t\tEnter any keys to continue.......");
getch();

fclose(fileOne);

}

void displayInfo() { FILE *fileOne = fopen("studentInfo.bin", "rb");

if (fileOne == NULL)
{
    printf("\n\t\t\tError !\n");
}

Student stundentInformation;

system("cls");

printf("\t\t\t\t====== All Students Information ======\n");

printf("\n\n\t\t%-20s%-13s%-10s%-25s%-15s%-s\n", "Name", "ID", "Dept.", "Address", "Contact", "CGPA");
printf("\t\t----------------------------------------------------------------------------------------");

while (fread(&stundentInformation, sizeof(stundentInformation), 1, fileOne) == 1)
{
    printf("\n\n\t\t%-20s%-13s%-10s%-25s%-15s%-.2f", stundentInformation.studentName, stundentInformation.studentId, stundentInformation.studentDept, stundentInformation.studentAddress, stundentInformation.studentContactNum, stundentInformation.studentCGPA);
}

printf("\n\n\t\tEnter any keys to continue.......");
getch();

fclose(fileOne);

}

void updateInfo() { FILE fileOne = fopen("studentInfo.bin", "rb"); FILE temp = fopen("temp.bin", "wb");

Student studentInformation, tempInformation;

int choice, flag = 0;

if (fileOne == NULL || temp == NULL)
{
    printf("\n\t\t\tError !\n");
}

system("cls");

printf("\t\t\t\t====== Update Students Information ======\n");

printf("\n\t\t\tEnter Student's ID : ");
getchar();
gets(tempInformation.studentId);

while (fread(&studentInformation, sizeof(studentInformation), 1, fileOne) == 1)
{
    if (strcmp(studentInformation.studentId, tempInformation.studentId) == 0)
    {
        flag++;
        printf("\n\t\t\tChoose your option :\n\t\t\t1.Update Student Name\n\t\t\t2.Update Student Dept.\n\t\t\t3.Update Student Address\n\t\t\t4.Update Student Contact No.\n\t\t\t5.Update Student CPGA");
        printf("\n\n\t\t\tEnter Your Option : ");
        scanf("%d", &choice);
        if (choice == 1)
        {
            printf("\n\t\t\tEnter Student's Name to Update: ");
            getchar();
            gets(tempInformation.studentName);
            strcpy(studentInformation.studentName, tempInformation.studentName);

            fwrite(&studentInformation, sizeof(studentInformation), 1, temp);
            printf("\n\n\t\t\tUpdated successfully!\n\n");
        }
        else if (choice == 2)
        {
            printf("\n\t\t\tEnter Student's Dept. to Update: ");
            getchar();
            gets(tempInformation.studentDept);
            strcpy(studentInformation.studentDept, tempInformation.studentDept);

            fwrite(&studentInformation, sizeof(studentInformation), 1, temp);
            printf("\n\n\t\t\tUpdated successfully!\n\n");
        }
        else if (choice == 3)
        {
            printf("\n\t\t\tEnter Student's Address to Update: ");
            getchar();
            gets(tempInformation.studentAddress);
            strcpy(studentInformation.studentAddress, tempInformation.studentAddress);

            fwrite(&studentInformation, sizeof(studentInformation), 1, temp);
            printf("\n\n\t\t\tUpdated successfully!\n\n");
        }
        else if (choice == 4)
        {
            printf("\n\t\t\tEnter Student's Contact No. to Update: ");
            getchar();
            gets(tempInformation.studentContactNum);
            strcpy(studentInformation.studentContactNum, tempInformation.studentContactNum);

            fwrite(&studentInformation, sizeof(studentInformation), 1, temp);
            printf("\n\n\t\t\tUpdated successfully!\n\n");
        }
        else if (choice == 5)
        {
            printf("\n\t\t\tEnter Student's CGPA to Update: ");
            scanf("%f", &tempInformation.studentCGPA);
            studentInformation.studentCGPA = tempInformation.studentCGPA;

            fwrite(&studentInformation, sizeof(studentInformation), 1, temp);
            printf("\n\n\t\t\tUpdated successfully!\n\n");
        }
        else
        {
            printf("\n\t\t\tInvalid Option.");
            fwrite(&studentInformation, sizeof(studentInformation), 1, temp);
        }
    }
    else
    {
        fwrite(&studentInformation, sizeof(studentInformation), 1, temp);
    }
}

fclose(fileOne);
fclose(temp);

remove("studentInfo.bin");
rename("temp.bin", "studentInfo.bin");

if (flag == 0)
{
    printf("\n\t\t\tStudent Id is not found");
}

printf("\n\n\t\t\tEnter any keys to continue.......");
getch();

}

void deleteInfo() { FILE fileOne = fopen("studentInfo.bin", "rb"); FILE temp = fopen("temp.bin", "wb");

Student studentInformation, tempInformation;

int choice, flag = 0;

if (fileOne == NULL || temp == NULL)
{
    printf("\n\t\t\tError !\n");
}

system("cls");

printf("\t\t\t\t====== Delete Student Information ======\n");

printf("\n\t\t\tEnter Student's ID : ");
getchar();
gets(tempInformation.studentId);

while (fread(&studentInformation, sizeof(studentInformation), 1, fileOne) == 1)
{
    if (strcmp(studentInformation.studentId, tempInformation.studentId) == 0)
    {
        flag++;
        printf("\n\t\t\tAre you sure to delete ??\n\t\t\t\t1.Yes\n\t\t\t\t2.Back\n\t\t\t\tEnter Your Option : ");
        scanf("%d", &choice);
        if (choice == 1)
        {
            printf("\n\n\t\t\tInformation has been deleted successfully!\n\n");
        }
        else if (choice == 2)
        {
            fwrite(&studentInformation, sizeof(studentInformation), 1, temp);
        }
        else
        {
            printf("\n\t\t\tInvalid Option");
            fwrite(&studentInformation, sizeof(studentInformation), 1, temp);
        }
    }
    else
    {
        fwrite(&studentInformation, sizeof(studentInformation), 1, temp);
    }
}

fclose(fileOne);
fclose(temp);

remove("studentInfo.bin");
rename("temp.bin", "studentInfo.bin");

if (flag == 0)
{
    printf("\n\t\t\tStudent Id is not found");
}

printf("\n\n\t\t\tEnter any keys to continue.......");
getch();

}

void searchInfo() { FILE *fileOne = fopen("studentInfo.bin", "rb");

Student studentInformation;

int choice, flag = 0;
char studentID[20], studentDept[10];

if (fileOne == NULL)
{
    printf("\n\t\t\tError !\n");
}

system("cls");

printf("\t\t\t\t====== Search Student Information ======\n");

printf("\n\t\t\tChoose your option :\n\t\t\t1.Search by Student ID\n\t\t\t2.Search by Student Dept.");
printf("\n\n\t\t\tEnter Your Option : ");
scanf("%d", &choice);

if (choice == 1)
{
    system("cls");
    printf("\t\t\t\t====== Search Student Information ======\n");
    printf("\n\n\t\t\tEnter Student ID : ");
    getchar();
    gets(studentID);
    while (fread(&studentInformation, sizeof(studentInformation), 1, fileOne) == 1)
    {
        if (strcmp(studentInformation.studentId, studentID) == 0)
        {
            flag++;
            printf("\n\t\t\tStudent Name : %s\n\t\t\tStudent ID : %s\n\t\t\tStudent Dept. : %s\n\t\t\tStudent Address : %s\n\t\t\tStudent Contact No. : %s\n\t\t\tStudent CGPA : %.2f\n", studentInformation.studentName, studentInformation.studentId, studentInformation.studentDept, studentInformation.studentAddress, studentInformation.studentContactNum, studentInformation.studentCGPA);
        }
    }
    if (flag == 0)
    {
        printf("\n\t\t\tStudent Id is not found");
    }
}
else if (choice == 2)
{
    system("cls");
    printf("\t\t\t\t====== Search Student Information ======\n");
    printf("\n\n\t\t\tEnter Student Dept. : ");
    getchar();
    gets(studentDept);
    printf("\n\n\t\t%-20s%-13s%-10s%-25s%-15s%-s\n", "Name", "ID", "Dept.", "Address", "Contact", "CGPA");
    printf("\t\t----------------------------------------------------------------------------------------");
    while (fread(&studentInformation, sizeof(studentInformation), 1, fileOne) == 1)
    {
        if (stricmp(studentInformation.studentDept, studentDept) == 0)
        {
            flag++;
            printf("\n\n\t\t%-20s%-13s%-10s%-25s%-15s%-.2f", studentInformation.studentName, studentInformation.studentId, studentInformation.studentDept, studentInformation.studentAddress, studentInformation.studentContactNum, studentInformation.studentCGPA);
        }
    }
    if (flag == 0)
    {
        printf("\n\t\t\tStudent Id is not found");
    }
}
else
{
    printf("\n\t\t\tInvalid Option");
}

fclose(fileOne);

printf("\n\n\n\t\t\tEnter any keys to continue.......");
getch();

}

Minhquy2003iothust / Project

student management #115

include

include

include