#include<stdio.h>
#include<conio.h>
struct
emp
{
char name[50];
int age;
int
salary;
};
void
main()
{
FILE *fp;
int i=1;
char ans;
struct emp e[10];
clrscr();
fp=fopen("employee1.txt","wb");
if(fp==NULL)
{
printf("Error");
getch();
exit(0);
}
for(i=0;i<2;i++)
{
printf("\n------- Record
- %d --------",i+1);
fflush(stdin);
printf("\nEnter Employee
name : ");
gets(e[i].name);
fflush(stdin);
printf("\nEnter Employee
age : ");
scanf("%d",&e[i].age);
printf("\nEnter
salary : ");
scanf("%d",&e[i].salary);
fflush(stdin);
//fprintf(fp,"%s %d
%f",e.name,e.age,e.salary);
}
fwrite(&e,sizeof(e),2,fp);
fclose(fp);
fp=fopen("employee1.txt","rb");
printf("\n----------------------------------------------------");
printf("\n Records in File
");
printf("\n----------------------------------------------------");
printf("\n Name\t\t\tAge\t Salary ");
printf("\n----------------------------------------------------");
if((fread(&e,sizeof(e),2,fp))!=2)
{
printf("\n no records \n\n");
}
for(i=0;i<2;i++)
{
printf("\n %-20s %d %d",e[i].name,e[i].age,e[i].salary);
}
getch();
}
Program – 12 : Random access file
#include<stdio.h>
#include<conio.h>
void
main()
{
FILE *fp;
long n;
char ch;
clrscr();
fp=fopen("content.txt","w+");
printf("\n Write character content to the
file foe exit press ctrl+Z: \n ");
while((ch=getchar())!=EOF)
{
fputc(ch,fp);
}
printf("Content written in
file");
printf("\n no of characters entered
in file : %ld",ftell(fp));
rewind(fp); // fseek(fp,0L,0)
n=0L;
while(feof(fp)==0)
{
fseek(fp,n,0);
printf("\n %c at position %ld ",fgetc(fp),ftell(fp));
n=n+1L;
}
// getch();
fseek(fp,-1L,2);
printf("\n %c",fgetc(fp));
printf("\n -1L ->
%ld",ftell(fp));
fseek(fp,-2L,2);
printf("\n %c",fgetc(fp));
printf("\n -2L->
%ld",ftell(fp));
fclose(fp);
getch();
}