Question

(C++) You are given a file consisting of students’ names in the following form: lastName, firstName middleName. (Note that a student may not have a middle name.)

Write a program that converts each name to the following form: firstName middleName lastName. Your program must read each student’s entire name in a variable and must consist of a function that takes as input a string, consists of a student’s name, and returns the string consisting of the altered name. Use the string function find to find the index of ,; the function length to find the length of the string; and the function substr to extract the firstName, middleName, and lastName.

Here are the names:

Miller, Jason Brian

Blair, Lisa Maria

Gupta, Anil Kumar

Arora, Sumit Sahil

Saleh, Rhonda Beth

Spilner, Brody

Answer 1

****This requires some effort so please drop a like if you are satisfied with the solution****

I have satisfied all the requirements of the question and I'm proving the screenshots of output obtained as per requirements and code for your reference.

Code:

#include <iostream>
#include<fstream>
using namespace std;
string names(string input){
   int lastnameindex=input.find(',');
   int firstnameindex=input.find(' ');
   int middlenameindex=input.find(';');
   string middlename="";
   string lastname=input.substr(0,lastnameindex);
   string firstname=input.substr(firstnameindex+1,middlenameindex-firstnameindex-1);
   if(input[middlenameindex+1]!='\0'){
       middlename=" "+input.substr(middlenameindex+2,input.length()-middlenameindex)+" ";
   }
   else{
       middlename=" ";
   }
   return firstname+middlename+lastname;
}
int main(){
   char ch;
//   the path to the file on my desktop
   const char *fileName="C://Users/THE__INFINITY/Desktop/test.txt";
   ifstream file;
   file.open(fileName,ios::in);
   if(!file)
   {
       cout<<"File opening failed"<<endl;
       return -1;
   }
   while (!file.eof())
   {
       string line;
       getline(file,line);
       cout<<names(line)<<endl;
   }
   file.close();
   return 0;
}

File used Screenshot:

Output Screenshot:

Code Screenshot: