C++ Program file content 00000042 87 00006335 40 00019170 64 00011479 98 0002696

Question

C++ Program

file content

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User Input

Your program will calculate employees' wages from data read from a file combined with data inputted by the user. The data in the fie consists of employee IDs and employees' hourly rates. The program wa read the file and store the employee IDs and hourly rates inparallel arrays. The program prompts the to emplovee the number of hours worked that and searches for a match in the employee array a is program displays the hourly rate, calculates and displays the wage. The wage is calculated as heuriv rate number of hours worked. The program performs input validation: the employee ic must be >-1 and NUM RANGE, and the number of hours must be smo, if the input is invald, the user is prompted to reenter the data. 1. Requirements a) Functions Your program must implement the following getData: This function takes as arguments an ID array and a rate array, reads from the input fil11e and populates the parallel arrays The function returns the actual number of employees read from the file. If the file cannot be opened, vour program should output an error message and exit. search: This function takes as arguments an employee ID, an array, the actual number of emplayees, and searches the array for a match. The function returns the index of the element where a match is found, or -1 if no match is found. For this assignment, implement the linear search. o make your program more modular You are encouraged to implement additional functions b) Assumptions s in the file, and set the array sizes to 1,000. You can assume there are at most 1,000 employee records However, the actual number of employ (determined by your getData function) is less or equal to You can assume that each employee has a unique ID, and the possible ID values range from to NUM RANGE 999999 inclusive. Employee ID and rate are of type int employee File tot". The file is posted on elearning You can hard code the file name c) Outline of main Your main function must demonstrate your getData and search functions are working correctly by implementing this pseudo code: while (user does not choose Quit

Explanation / Answer

Following is the required code. Hope it helps:

//Employee wages
#include<iostream>
#include<fstream>
#include<cstdlib>
using namespace std;

#define NUM_RANGE 999999
//function prototype
int getData(int id[], int rate[]);
int Search(int emp_id, int id[], int num_of_emp);

int main()
{
int id[1000],rate[1000];
int num_of_emp, emp_id, hr,index,res;
char ch;

num_of_emp = getData(id,rate);
do
{
cout<<"Enter employee id and no. of hours";
cin>>emp_id>>hr;
//sanity check
if(emp_id>=1 && emp_id<=NUM_RANGE && hr>=1)
{
index = Search(emp_id, id, num_of_emp);
if(index != -1)
{
res = rate[index]*hr;
cout<<"Emp. rate: "<<rate[index]<<endl<<"Result:"<<res;
cout<<"No. of searches: "<<index+1;
}
else
{
cout<<"Employee is not found";
}

}
else
continue;
cout<<"Press 'y' or 'Y' to enter more data:";
cin>>ch;
}while(ch=='y' || ch=='Y');

return 0;
}//end of main function

int getData(int id[], int rate[])
{
int i = 0;

ifstream myfile ("employeeFile.txt");
if (myfile.is_open())
{
while(true)
{
myfile >> id[i] >> rate[i];
i++;
if( myfile.eof() )
break;
}//end of while loop
}
else
{
cout<<"Unable to open file";
exit(1);
}
return i;
}//end of getData function

int Search(int emp_id, int id[], int num_of_emp)
{
int i;
for(i=0;i<num_of_emp;i++)
{
if(id[i] == emp_id)
return i;
}
return -1;
}//end of search function

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