program to write/store record and read from data file. THis data file contains employee name and salary.

using codeblocks
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Write a program to write/store record and read from data file. THis data file contains employee name and salary. Use fread () and fwrite().

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//program to store and read employee name and salary using fread() and fwrite()

#include <stdio.h>

#include <stdlib.h>

struct employee

{

    char name[50];

    float salary;

}var;

int main()

{

FILE *k;                                     //  pointer for file declaration

char choice;                                  //identifier declaration

k=fopen("employee.txt","w");                  //file opening

do

{

printf("\n enter salary\n");

scanf("%f",&var.salary);

printf("enter  name\n");           // getting inputs

scanf("%s",var.name);

fwrite(&var,sizeof(var),1,k); //writing data to data file

printf("want to continue (y/n):=");//prints message

choice=getche();                      //gets a character

}while(choice!='n');        //writing repeats as you enter 'y'

printf("\n writing process completed successfully\n");

fclose(k);                            //closing of file                                                            //closing data file

printf('-----------------------');

printf("reading data\n");

k=fopen("employee.txt","r");//file opening

while((fread(&var,sizeof(var),1,k))==1)// fread() reads the records till it is true.

                                        //As it becomes less than 1, it stops

{

    printf("salary=%f and name=%s\n",var.salary,var.name);//prints the struct value

}

fclose(k);                            //closing of file.

getch();

return 0;

}

//or

//program to store and read employee name and salary using fscanf() and fprintf()

#include <stdio.h>

#include <stdlib.h>

struct employee

{

    char name[50];

    float salary;

}var;

int main()

{

FILE *k;                                       //  pointer for file declaration

char choice;                                //identifier declaration

k=fopen("employee.txt","w");//file opening

do

{

printf("\nenter salary\n");

scanf("%f",&var.salary);

printf("enter  name\n");           // getting inputs

scanf("%s",var.name);

fprintf(k,"%f %s\n",var.salary,var.name); //writing data to data file

printf("want to continue (y/n):=");//prints message

choice=getche();                      //gets a character

}while(choice!='n');        //writing repeats as you enter 'y'

printf("\n writing process completed successfully\n");

fclose(k);                            //closing of file

printf("now going to read data\n");

k=fopen("employee.txt","r");// opening file in read mode

while((fscanf(k,"%f %s",&var.salary,var.name))!=EOF)// reading data until it reads the last one

{

printf("name=%s and salary=%f\n",var.name,var.salary);//printing that read data

}

fclose(k);

getch();

return 0;

}

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using turboc++

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//program to store and read employee name and salary using fread() and fwrite()

#include <stdio.h>

#include <stdlib.h>

struct employee

{

    char name[50];

    float salary;

}var;

int main()

{

FILE *k;                                     //  pointer for file declaration

char choice;                                  //identifier declaration

k=fopen("employee.txt","w");                  //file opening

do

{

printf("\n enter salary\n");

scanf("%f",&var.salary);

printf("enter  name\n");           // getting inputs

scanf("%s",var.name);

fwrite(&var,sizeof(var),1,k); //writing data to data file

printf("want to continue (y/n):=");//prints message

choice=getche();                      //gets a character

}while(choice!='n');        //writing repeats as you enter 'y'

printf("\n writing process completed successfully\n");

fclose(k);                            //closing of file                                                            //closing data file

printf('-----------------------');

printf("reading data\n");

k=fopen("employee.txt","r");//file opening

while((fread(&var,sizeof(var),1,k))==1)// fread() reads the records till it is true.

                                        //As it becomes less than 1, it stops

{

    printf("salary=%f and name=%s\n",var.salary,var.name);//prints the struct value

}

fclose(k);                            //closing of file.

getch();

return 0;

}

//or

//program to store and read employee name and salary using fscanf() and fprintf()

#include <stdio.h>

#include <stdlib.h>

struct employee

{

    char name[50];

    float salary;

}var;

int main()

{

FILE *k;                                       //  pointer for file declaration

char choice;                                //identifier declaration

k=fopen("employee.txt","w");//file opening

do

{

printf("\nenter salary\n");

scanf("%f",&var.salary);

printf("enter  name\n");           // getting inputs

scanf("%s",var.name);

fprintf(k,"%f %s\n",var.salary,var.name); //writing data to data file

printf("want to continue (y/n):=");//prints message

choice=getche();                      //gets a character

}while(choice!='n');        //writing repeats as you enter 'y'

printf("\n writing process completed successfully\n");

fclose(k);                            //closing of file

printf("now going to read data\n");

k=fopen("employee.txt","r");// opening file in read mode

while((fscanf(k,"%f %s",&var.salary,var.name))!=EOF)// reading data until it reads the last one

{

printf("name=%s and salary=%f\n",var.name,var.salary);//printing that read data

}

fclose(k);

getch();

return 0;

}