Write a program using a class that has array data members NAME, SALARY, YEAR_HIR

Question

Write a program using a class that has array data members NAME, SALARY, YEAR_HIRED. This program will

1) write the data for 10 records to a random access file

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 add a record.

Note: The record number is the sbscript of the array for NAME, SALARY, DATE_HIRED.  

PLEASE FIRST WRITE A PROGRAM THAT WRITES NAME TO A RANDOM ACCESS FILE AND READS IT  

*************** MAKE SURE THIS WORKS !!*****************

***********THEN MAKE NAME, SALARY, DATE_HIRED ARRAYS and MAKE SURE IT WORKS *********

    ***************THEN MAKE YOUR PROGRAM WRITE and READ 10 RECORDS. . MAKE SURE THIS WORKS **********

***************** FINALLY ALLOW USER TO OUTPUT AND MODIFY SELECTED RECORD.***********  

c++

Explanation / Answer

#include<iostream.h>

#include<fstream.h>

#include<iomanip.h>

class Employee

{

char name[30],

float salary;

int year_hired;

public:

void accept()

{

cout<<"Enter Name of employee:";

cin>>name;

cout<<"Enter salary :";

cin>>salary;

cout<<"Enter Year of hiring :";

cin>>year_hired;

}

void display()

{

cout<<setw(30)<<name

<<setw(10)

<<setprecision(2)

<<setiosflags(ios::showpoint)

<<salary

<<setw(10)<<year_hired

<<endl;

}

};

int main()

{

fstream f1;

Employee e1;

f1.open("EMP.DAT",ios::binary | ios::ate | ios::in | ios::out);

//add new employee records

f1.seekp(0,ios::end);

f1.clear;

cout<<"Enter employee details to add: ";

e1.accept();

f1.write((char *)&e1 , sizeof(e1));

cout<<"employee record saved";

//display the records

f1.seekg(0); //move pointer to the start of file

while(f1.read(char *)&e1 , sizeof(e1)))

{

e1.display();

}

//modify existing records

cout<<"Enter record to modify:";

int m;

cin>>m;

int pos=(m-1)*sizeof(e1);

f1.seekp(pos , ios::beg); //move put pointer to mth record

f1.clear();

cout<<"Enter new values of the emplyee:";

e1.accept();

f1.write((char *)&e1 , sizeof(e1));

cout<<" emplyee record is modified";

f1.close();

return 0;

}

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