Write a program in C++ that stores cars in an array and that can add, remove, pr

Question

Write a program in C++ that stores cars in an array and that can add, remove, print and list cars. The commands for adding, removing, printing and listing will come from a file (specified on either the command-line or via STDIN). Commands are as follows (fields are separated by tabs):

Here are some example commands files:

lab2-HYbridCommands.tab

The first file should produce STDOUT output that matches exactly with what's in lab2-hybridCommands-stdout.txt
There will be at most 1024 unique cars.

THIS THE https

Explanation / Answer

/* Header files section */
#include <iostream>
#include <fstream>
#include <string>
using namespace std;

/* Vehicle structure */
struct Vehicle
{
int price;
int year;
int mileage;
string make;
string model;
string color;
int distance;
int count;  
}; /* end of structure */

/* function protypes */
int getIndex(Vehicle *, Vehicle *);
void addCar(Vehicle *, Vehicle *);
void removeCar(Vehicle *, Vehicle *, ofstream &);
void printCar(Vehicle *,Vehicle *, ofstream &);
void printAllCars(Vehicle *, ofstream &);

/* global variable */
int nextIndex;

/* start main function */
int main()
{
/* open the input file */
ifstream inFile("lab2-HYbridCommands.tab");
if(!inFile)
{
  /* display the error message and eoneit the program if the input file is not found */
  cout << "The input file lab2-HYbridCommands.tab is not opened." << endl;
  system("pause");
  exit(1);
} // end if

/* open the output file */
ofstream outFile("lab2-hybridCommands-stdout.txt");
if(!outFile)
{
  /* display the error message and eoneit the program if the output file is not found */
  cout << "The output file lab2-hybridCommands-stdout.txt is not opened." << endl;
  system("pause");
  exit(1);
} // end if

char cmd;
Vehicle all[1024];
Vehicle one;
nextIndex = 0;

/* read the data from input file */
while(1)
{
  inFile >> cmd;
  if(!inFile)
   return 1;
  switch(cmd)
  {
  case 'A':
   inFile >> one.price >> one.year >> one.mileage >> one.make >> one.model >> one.color >> one.distance;
   if(!inFile)
    break;
   addCar(all, &one);
   break;
  case 'R':
   inFile >> one.price >> one.year >> one.mileage >> one.make >> one.model >> one.color >> one.distance;
   if(!inFile) break;
   removeCar(all, &one, outFile);
   break;
  case 'P':
   inFile >> one.price >> one.year >> one.mileage >> one.make >> one.model >> one.color >> one.distance;
   if(!inFile) break;
   printCar(all, &one, outFile);
   break;
  case 'L':
   printAllCars(all, outFile);
   break;
  }
}

/* close the input and output files */
inFile.close();
outFile.close();

/* pause the system for a while */
system("pause");
return 0;
} /* end of main function */

int getIndex(Vehicle *all, Vehicle *one)
{
for(int i = 0; i < nextIndex; i++)
{
  if(all[i].make == one->make)
   if(all[i].model == one->model)
    if(all[i].color == one->color)
     if(all[i].price == one->price)
      if(all[i].year == one->year)
       if(all[i].mileage == one->mileage)
        if(all[i].distance == one->distance)
         if(all[i].count > 0)
          return i;
}

return -1;
}

void addCar(Vehicle *all, Vehicle *one)
{
int idx = getIndex(all, one);

if(idx != -1)
  all[idx].count++;
else
{
  all[nextIndex].price   = one->price;
  all[nextIndex].year   = one->year;
  all[nextIndex].mileage   = one->mileage;
  all[nextIndex].make   = one->make;
  all[nextIndex].model   = one->model;
  all[nextIndex].color   = one->color;
  all[nextIndex].distance = one->distance;
  all[nextIndex].count   = 1;
  nextIndex++;
}
}

void removeCar(Vehicle *all, Vehicle *one, ofstream &outFile)
{
int idx = getIndex(all, one);

if(idx != -1)
  all[idx].count--;
else
  outFile << " No car in the list with these details." << endl;
}

void printCar(Vehicle *all, Vehicle *one, ofstream &outFile)
{
int idx = getIndex(all, one);

if(idx == -1)
  idx = nextIndex;
else
{
  outFile << " Vehicle #" << idx + 1 << ":" << endl;
  outFile << "--------------" << endl;
  outFile << "Price: " << all[idx].price << endl;
  outFile << "Year: " << all[idx].year << endl;
  outFile << "Mileage: " << all[idx].mileage << endl;
  outFile << "Make: " << all[idx].make.c_str() << endl;
  outFile << "Model: " << all[idx].model.c_str() << endl;
  outFile << "Color: " << all[idx].color.c_str() << endl;
  outFile << "Distance: " << all[idx].distance << endl;
}
}

void printAllCars(Vehicle *all, ofstream &outFile)
{
outFile << " Listing all vehicles:" << endl;
outFile << "---------------------------------" << endl;
for(int i = 0; i < nextIndex; i++)
{
  if(all[i].count>0)
   printCar(all, &all[i], outFile);
}
}

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