Question

Using c++ write a program using a class that has   data members ID#,NAME, SALARY, YEAR_HIRED. This program must

1) write 10 blank records to a random access file. You must enter data for 4 of these records.

2) allow the user to output the name, salary, hire_date for a selected record

3) allow the user to change the name, salary, or hire_date for a selected record.

4) allow the user to input a complete record to replace one of the blank records.

Note: The record number is the ID number. This should be 1 - 10.

~ First write a program that writes a name to a random access file and reads it.

~Then make NAME, SALARY, YEAR_HIRED arrays.

~Then make the program write and read 4 records and 6 blank records.

~Lastly allow user to output and modify selected record.

Submission must compile and must be able to write and read from a random access (binary) file.

Answer 1

#include<stdio.h>
#include<conio.h>
#include<string.h>
int main()
{
struct student
{
int id;
char name[30];
int salary;
int year_hired;

};
struct student stud[10];
int i,n,ID,new_id,new_salary,new_year;
char new_name[30];
stud[0].id=1;
strcpy(stud[0].name,"rashi");
stud[0].salary=1200;
stud[0].year_hired=2000;
stud[1].id=2;
strcpy(stud[1].name,"tripura");
stud[1].salary=1500;
stud[1].year_hired=2001;
stud[2].id=3;
strcpy(stud[2].name,"lavanya");
stud[2].salary=1000;
stud[2].year_hired=2006;
stud[3].id=4;
strcpy(stud[3].name,"pavani");
stud[3].salary=1700;
stud[3].year_hired=2002;
printf("\n enter the record no. which you to display:");
scanf("%d",&n);
printf("\n ID no.=%d",stud[n].id);
printf("\n name=%s",stud[n].name);
printf("\n salary=%d",stud[n].salary);
printf("\n year_hired=%d",stud[n].year_hired);
printf("\n enter the id no. of student whose record has to be edited:");
scanf("%d",&ID);
printf("\n enter the new id number:");
scanf("%d",&new_id);
printf("\n enter the new name:");
scanf("%s",&new_name);
printf("\n enter the new salary:");
scanf("%d",&new_salary);
printf("\n enter the new year:");
scanf("%d",&new_year);
stud[ID].id=new_id;
strcpy(stud[ID].name,new_name);
stud[ID].salary=new_salary;
stud[ID].year_hired=new_year;
printf("\n modified results");
printf("\n ID no.=%d",stud[ID].id);
printf("\n name=%s",stud[ID].name);
printf("\n salary=%d",stud[ID].salary);
printf("\n year_hired=%d",stud[ID].year_hired);

return 0;

}