N student details and sort the stures as per total marks ,by creating a structure to store the roll number,name,marks1,marks2,marks3

A small wire from the pos of your battery I forgot that part

Hello Shiv, check this link Program to Store Information of Students Using Structure

You can use Windows Excel
or
Adobe Open Office (free)

Select 'Spreadsheet' and away you go
The column width can be adjusted to suit the text
Text size is adjustable
Exam marks 1.2,3,4 etc can be auto calculated
Suggested format below (Open Office)
Name Fred Mary Jane



Roll 1 2 3



Exam 1 75 55 73



Exam2 80 81 82



Exam 3 66 71 90







Total 222 209 248

DOB-2/4/1991,ROLL NO: 09F71A0585 ,TENTH MARKS:493

Ah, word problems! The trick is to convert the given information into two equations in two unknowns. Let's let S be the number of solid color rolls sold, and P be the number of print rolls.

The first equation is easy:

(eq. 1): S + P = 480

We're given that information: the total number of rolls sold. For the second equation, use the given price information ($4/roll for the plain, $6/roll for the print).

(eq. 2): 4S + 6P = 2340

Again, we're given the total sales, and we know how much each kind costs.

Now it's just some basic algebra. Let's rearrange equation 1 to get S by itself:

S = 480 - P

Then use that value in equation 2, and solve for P:

4S + 6P =2340
4(480 - P) + 6P = 2340
1920 - 4P + 6P = 2340
2P = 420
P = 210

Now we know that the MLHS band sold 210 rolls of print paper, which means they sold 270 rolls of solid. You can your answers in the original equations. If they are the right values, both equations will work out.

270 + 210 = 480, eq. 1 is right.
(4 x 270) + (6 X 210) = 1080 + 1260 = 2340, eq. 2 checks.

#include<stdio.h>
#include<conio.h>
#include<string.h>
#include<stdlib.h>
#include<ctype.h>
struct student
{char name[20];
int rollno;
int mark;
};
void main()
{
int ch,f,roll,i,j,l;
char name[20];
struct student k,t,d[50];
FILE *fp,*temp;
clrscr();
fp=fopen("stud.c","wb");
fclose(fp);
while(1)
{printf("\n=========================\n");
printf("\n\n1.Insert\n2.Display\n3.Search\n4.Delete\n5.Sort\n6.Update\n7.Exit");
scanf("%d",&ch);
printf("\n==========================\n");
switch(ch)
{
case 1:
{
printf("\n Enter name");
scanf("%s",k.name);
printf("\n Roll no:");
scanf("%d",&k.rollno);
printf("\n Mark");
sanf("%d",&k.mark);
fp=fopen("stud.c","a+b");
fwrite(&k,sizef(k),l,fp);
fclose(fp);
break;}
case 2:
{
fp=fopen("stud.c","rb");
while(fread(&k,sizeof(k),l,fp)!=0)
printf("\n name:%s \t Rollno: %d \t Mark:%d",k.name,k.rollno,k.mark);
fclose(fp);
break;
}
case 3:
{f=0;
fp=fopen("stud.c","rb");
printf("\nEnter the rollnumber to be searched :");
scanf("%d",&roll);
while(fread(&k,sizeof(k),l,fp)!=0)
{ if(k.rollno==roll)
{
f=1;
printf("\n Name:%s \t Rollno:%d\t Mark:%d,k.Name,k.rollno,k.mark");
}
}
if(f==0)
printf("searched item does not exit");
fclose(fp);
break;
case 4:
f=0;
printf("enter the roll no for deleting the record:");
scanf("%d",&roll);
fp=fopen("stud.c","rb");
temp=fopen("temp.c","wb");
while(fread(&k,sizeof(k),l,fp)!=0)
{
if(k.rollno==roll)
f=1;
else
fwrite(&k,sizeof(k),l,temp);
}
fcloseall();
if(f==1)
{
temp=fopen("temp.c","rb");
fp=fopen("stud","wb");
while(fread(&k,sizeof(k),l,temp)!=0)
fwrite(&k,sizeof(k),l,fp);
printf("record deleted");
}
else
printf("roll no not found");
fclose(fp);
fclose(temp);
break;
}
case 5:
{
fp=fopen("stud.c","rb");
i=0;
while(fread(&d[i],sizeof(k),i,fp)!=0)
i++;
fclose(fp);
for(j=0;j<i-1;j++)
{
for(l=j;l<i;l++)
{
if(d[j].rollno>d[l].rollno)
{
t=d[j];
d[j]=d[l];
d[l]=t;
}
}
}
fp=fopen("stud.c","wb");
for(l=0;l<i;l++)
fwrite(&d[l],sizeof(k),l,fp);
fclose(fp);
printf("\nsuccessfully sorted");
break;
}
case 6:
{
f=0;
printf("enter roll number to update:");
scanf("%d",&roll);
fp=fopen("stud.c","rb");
temp=fopen("temp.c","wb");
while(fread(&k,sizeof(k),l,fp)!=0)
{
if(roll==k.rollno)
{
printf("enter the new record name,mark\n");
scanf("%s%d",k.name,&k.mark);
f=1;
}
else
fwrite(&k,sizeof(k),l,temp);
}
fcloseall();
fp=fopen("stud.c","wb");
temp=fopen("temp.c","rb");
while(fread(&k,sizeof(k),l,temp)!=0)
fwrite(&k,sizeof(k),l,fp);
if(f==0)
printf("roll no is not present");
fcloseall();
break;
}
case 7:
exit(1);
break;
}
}
}

Hi Radhika,
I can help you in making project, simply wat you have to do is :-
--- try to create Structure chart of the system
--- Try to create DFD
--- Try to create ERD for the system
send it to me at [email protected]
having problems in all this pl call me at 9899780221

Thanks

Zulfikar Ali

Firstly you need to determine/state whether you are using a database application, such as Access, MtSQL or MS SQL and programming them to do create this application, or are you using a programming development tool such as Visual Studio, ASP.NET, PHP or the like, as the solution and guidance will be different for each.
In terms of the data design, you should store the data necessary to identify each employee uniquely and each data point per employee needed to calculate their payroll. You should then store the generic (applys to all employees) such as tax rates, in separate tables and call on it to calculate wages and other paystub data.
For instance, the employee first and last names and tax ID should be a sufficient unique identifier. Create a table for just employees, their names, tax ID, start date, schedule, pay rate, number of deductions, direct bank payment data, etc., and whatever else you decide you need for each employee. You can calculate their wages by multiplying their rate by their schedule and applying the appropriate tax rate and medical/witholding deductions as you go, so calculated data does not need to be stored and consume database space. 
You'll likely need a separate table for common data such as tax rates, one for deductions/witholdings, one for holidays, one for vacation accrual rates, one for medical rates, etc. This data if common to employees does not need to be stored per individual, as that would cause redundant replication of data. If the employees are on an hourly rate, rather than a set salary/wage, then you'll need a table of worked hours per employee, akin to their timesheet data. If you use a timesheet/timecard, the entering and storing only the totals and keeping the physical timesheet for backup records should suffice.
Once you design and populate your database as suggested above, then it's a relatively-simple task of calculating the computed paystub data and storing the salient resulting datapoints for the record.
Consider a reporting application, such as Crystal Reports, for your printing needs, as its far easier to configure Crystal or similar product to format reports, paystubs, checks, etc., than coding these from scratch.
Hope this helps.