Question

three employees in a company are up for a special pay increase. you are given a file, say, project4_pay.txt with the following data: miller andrew 702345.39 5 allison mary 60543.65 6 cartwright pearline 120004.98 7 each input line consists of an employee’s last name, first name, current salary and percent increase. write a program that reads the data from a file and outputs the last name, first name and new salary in an output file, say, project4out.dat in the following form: first name, last name, updated salary. format the output salary to two decimal places, as shown below andrew miller $737462.66 mary allison $64176.27  

C++ language

Answer 1

#include <iostream>
#include <fstream>
#include <string>
#include<sstream>
#include <bits/stdc++.h>

using namespace std;

int main ()
{
ifstream file;    //file input stream
string filename, words[50], str; //variables to take data from file in different forms
int i = 0,j,k=0,m,l,n=0,per[10]; // variables to hold data and for iterations
float sal[10],up_sal[10];         // data to hold salary and updated salary

filename = "project4_pay.txt";    //filename in string

file.open(filename.c_str());      //opening a file

while (file >> str) { //getting data from file
    words[i] = str;     // assigning data to array
    i++;                // increament which helps for word count also
}

j = 2;
while(j<i){   //loop to convert numbers from string
    if(j%2==0){
        stringstream ss(words[j]);
        ss >> sal[n];   // getting salary as float
        j++;
        n++;
    }

    if(j%2!=0){
        stringstream ss2(words[j]); // getting percentage increase as int
        ss2 >> per[k];
        k++;
        j=j+3;
    }
}

for(m=0;m<n;m++){ //calculate updated salary
    up_sal[m] = sal[m] + (sal[m]*per[m])/100;
}

ofstream outfile; //output stream
outfile.open("project4out.dat", ios::out | ios::trunc ); //open file in write mode

for(m=0,l=0;m<i||l<n;m=m+4,l++)   //writing data into the file
    outfile << words[m+1] <<" " << words[m] << " " << up_sal[l] << endl;
}

output is shown below in image