#include<stdio.h>
#include<conio.h>
void insert_record();
void display_record();
void search_record();
void del_record();
void update_record();
void sort_record();
struct student
{
int roll;
char sec[10];
char name[40];
int marks;
float per;
};
struct student s;
void main()
{
int ch;
clrscr();
while(ch!=7)
{
clrscr();
printf("\t*********************** HARI OM ****************************\n");
printf("\t************************************************************\n");
printf("\t WELCOME TO STUDENT MANAGEMENT PROJECT");
printf("\n\t*************************************************************\n");
printf("\t\t\t ***AVAILABLE FUNCTIONALTIES***\n");
printf("\t\t1: Insert student record\n");
printf("\t\t2: Display student record\n");
printf("\t\t3: Search student record\n");
printf("\t\t4: Delete student record\n");
printf("\t\t5: Update student record\n");
printf("\t\t6: Sort student record\n");
printf("\t\t7: Exit\n\n");
printf("\t\tEnter your choice:");
scanf("%d",&ch);
switch(ch)
{
case 1: clrscr();
insert_record();
break;
case 2: clrscr();
display_record();
break;
case 3: clrscr();
search_record();
break;
case 4: clrscr();
del_record();
break;
case 5: clrscr();
update_record();
break;
case 6: clrscr();
sort_record();
break;
case 7: exit(1);
default:
printf("\n\t\tWrong Choice Try Again!!");
}
printf("\n\t\tPress Any Key To Continue");
getch();
}
}
//*****************FUNCTIONS**************************
void insert_record()
{
FILE *fp;
fp=fopen("stu.txt","a");
if(fp==NULL)
{
printf("\n\t\tError: Cannot Open The File!!!");
return;
}
printf("\t***Previous Stored Data***");
display_record();
printf("\n\n\t***ENTER NEW STUDENT DATA***\n\n");
printf("\n\t\tEnter Student Roll Number:");
scanf("%d",&s.roll);
fflush(stdin);
printf("\n\t\tEnter Student Name[6-Letter]:");
gets(s.name);
printf("\n\t\tEnter Student Section:");
gets(s.sec);
printf("\n\t\tEnter Student Total Marks:");
scanf("%d",&s.marks);
printf("\n\t\tEnter Student Percentage:");
scanf("%f",&s.per);
fwrite(&s,sizeof(s),1,fp);
{
printf("\n\n\t!!!Student Record Inserted Successfully\n");
}
fclose(fp);
printf("\n\t\tUpdated Record!!\n");
display_record();
}
void display_record()
{
FILE *fp;
fp=fopen("stu.txt","r");
if(fp==NULL)
{
printf("\n\t\tError :Cannot open the file!!!");
return;
}
printf("\n\n\t ****Student Details Are As Follows ****\n");
printf("\nRoll.No\t Name \tSection\t\tMarks \tPercentage\n\n");
//printf("a.students roll number\tb.student name\tc.student section\td.student marks\te.student grade
while(fread(&s,sizeof(s),1,fp)==1)
{
printf(" %d \t%s \t%s \t\t%d \t%f\n",s.roll,s.name,s.sec,s.marks,s.per);
}
fclose(fp);
}
void search_record()
{
int ro,flag=0;
FILE *fp;
fp=fopen("stu.txt","r");
if(fp==NULL)
{
printf("\n\t\tError: Cannot open the file\n");
return;
}
printf("\n\n\tEnter Student Roll No Which You Want To Search:");
scanf("%d",&ro);
while(fread(&s,sizeof(s),1,fp)>0 && flag==0)
{
if(s.roll==ro)
{
flag=1;
printf("\n\n\tSearch Successfull And Student Records as Follows\n");
printf("\nRoll.No\tName of Student\t Section\t\tMarks\tPercentage\n");
printf("%d\t%s\t%s \t\t%d\t\t%f\n",s.roll,s.name,s.sec,s.marks,s.per);
}
}
if(flag==0)
{
printf("\n\n\t\tNo Such Record Found !!!!\n");
}
fclose(fp);
}
void del_record()
{
char name[40];
unsigned flag=0;
FILE *fp,*ft;
fp=fopen("stu.txt","r");
ft=fopen("temp.txt","w");
if(fp==NULL)
{
printf("\n\t\tError: Cannot Open The File!!!");
return;
}
printf("\n\t *** Previous Stores Data ***");
display_record();
printf("\n\n\tEnter Student Name Which You Want To Delete:");
scanf("%s",name);
//ft=fopen("stu1.txt","ab+");
while(fread(&s,sizeof(s),1,fp)==1)
{
if(strcmp(name,s.name)!=0)
{
printf("\n\t\tRecord Deleted Successfully\n");
fwrite(&s,sizeof(s),1,ft);
}
else
flag=1;
}
if(flag==0)
{
printf("\n\n\t\t No Such Record Found!!!");
}
fclose(fp);
fclose(ft);
remove("stu.txt");
rename("temp.txt","stu.txt");
}
void update_record()
{
int ro,flag=0;
FILE *fp;
fp=fopen("stu.txt","rb+");
if(fp==NULL)
{
printf("\n\t\tError: Cannot Open the File!!!");
return;
}
printf("\n\n\tEnter Roll Number Of Student Whose Record You Want To Update:");
scanf("%d",&ro);
printf("\n\t\t*** Previously Stored Record Of Given Roll Number ***");
while(fread(&s,sizeof(s),1,fp)>0 && flag==0)
{
if(s.roll==ro)
{
flag=1;
printf("\nRoll No\tName of Student\tSection\t\tMarks\tGrade");
printf("%d\t%s\t\t\t\t%s \t\t%d\t\t%f\n",s.roll,s.name,s.sec,s.marks,s.per);
printf("\n\t\t*** Now Enter The New Record ***\n\n");
printf("\n\t\tUpdated Student Roll Number:");
scanf("%d",&s.roll);
fflush(stdin);
printf("\n\t\tUpdated Student Name:");
scanf("%s",&s.name);
printf("\n\t\tUpdated Student Section:");
scanf("%s",&s.sec);
printf("\n\t\tUpdated Student Marks:");
scanf("%d",&s.marks);
printf("\n\t\tUpdated Student Percentage:");
scanf("%f",&s.per);
fseek(fp,-(long)sizeof(s),1);
fwrite(&s,sizeof(s),1,fp);
printf("\n\n\t\tRecord Updated Successfully Cheak the Display");
}
}
if(flag==0)
{
printf("\n\t\tError: Something Went Wrong!!!");
}
fclose(fp);
}
void sort_record()
{
struct student temp;
struct student arr[50];
int i,j,k=0;
FILE *fp;
fp=fopen("stu.txt","rb");
if(fp==NULL)
{
printf("\n\t\tError: Cannot Open the File!!!");
}
i=0;
while(fread(&arr[i],sizeof(arr[i]),1,fp)==1)
{
i++;
k++;
}
for(i=0;i<k;i++)
{
for(j=0;j<k-i-1;j++)
{
if(arr[j].roll>arr[j+1].roll)
{
temp=arr[j];
arr[j]=arr[j+1];
arr[j+1]=temp;
}
}
}
printf("\n\t\tAfter Sorting Student Details !!\n\n");
for(i=0;i<k;i++)
{
printf("%d\t\t%s\t\t%s\t\t%d\t\t%f\n",arr[i].roll,arr[i].name,arr[i].sec,arr[i].marks,arr[i].per);
}
fclose(fp);
}
