Question

C++ Code Please, Three employees in a company are up for a special pay increase. You are given a file, say Ch3_Ex5Data.txt, with the following data:

Miller Andrew 65789.87 5
Green Sheila 75892.56 6
Sethi Amit 74900.50 6.1

Each input line consists of an employee’s last name, first name, current salary, and percent pay increase.

For example, in the first input line, the last name of the employee is Miller, the first name is Andrew, the current salary is 65789.87, and the pay increase is 5%.

Instructions

Write a program that reads data from a file specified (Ch3_Ex5Data.txt) by the user at runtime and stores the output in the file Ch3_Ex5Output.dat.

For each employee, the data must be output in the following form: firstName lastName updatedSalary.

Format the output of decimal numbers to two decimal places.

Since your program handles currency, make sure to use a data type that can store decimals.

Answer 1

Hi,

Please go through code and screenshots for more information.

I've added all necessary comments.

C++ code:

//program starts here.

#include <iostream>
#include<fstream>
#include <sstream>
#include<string>
using namespace std;

void write(ifstream &file)
{
string line;//each line stored here
ofstream outfile;

//before starting please create this file
outfile.open("Ch3_Ex5Output.dat");//New file opened

//while end of the file
while(getline(file,line))//getline will read every line from file
{
//We will handle the every line and result writes into file
stringstream str(line);//With string stream we can process each word.
string last_name,first_name;
double cur_sal,percent;
str >> last_name; //reading first word from line
str >> first_name; //second word from line
str >> cur_sal; //double value(Rounded off value)
str >> percent; //percentage
percent = percent/100;//convertin the percentage to decimal value 5% mean 5/100 = 0.05

double increment = cur_sal * percent;
double new_sal = cur_sal + increment;

//writing to the file,in given order : firstName lastName updatedSalary
outfile << first_name << " " << last_name << " " << new_sal << "\n";
}

}

int main() {
string s;// for storing input file name.
cout << "Enter file name: ";
cin >> s;
//input file stream for reading file
//ifstream file(s) // may give error in some compilers because of conversion
ifstream file(s.c_str());//s.c_str converts string s to char * pointer
write(file);
}

//End of the program