can somebody correct my code? //#include\"stdafx.h\" #include <iostream> #includ

Question

can somebody correct my code?

//#include"stdafx.h"

#include <iostream>

#include<fstream>

#include<cmath>

#include<stdlib.h>

#include<string>

using namespace std;

const int SIZE =100;

class enginePerformance

{

public:

void retreiveData();

void setMaxPressure();

void setMinPressure();

void setAveragePressure();

void setCompressionRatio();

void outputReport ();

  

string getDataTitle()

{return dataTitle;}

string getEngineID()

{return engineID;}

string getDate()

{return date;}

  

  

string getRPM()

   {return dataTitle;}

double getCompRatio()

   {return compressionRatio;}

double getMaxPressure()

   {return averagePressure;}

double getMinPressure()

   {return averagePressure;}

double getAveragePressure()

{return averagePressure;}

  

private:

string dataTitle;

string engineID;

string date;

  

double RPM;

double pressure[SIZE];

double volume[SIZE];

int dataCount;

  

double compressionRatio;

double maxPressure;

double minPressure;

double averagePressure;

  

ifstream inputData;

ofstream report;

  

void openInputFile ();

void closeInputFile ();

void openOutputFile ()

{report.close();}

void closeOutputFile ();

void clearText ();

};

int main()

{

enginePerformance e;

e.retreiveData();

e.setMaxPressure();

e.setMinPressure();

e.setAveragePressure();

e.setCompressionRatio();

e.outputReport();

return 0;

  

}

void enginePerformance::retreiveData()

{

dataCount = 0;

openInputFile();

getline(inputData, dataTitle);

getline(inputData,engineID);

getline(inputData,date);

inputData >>RPM;

for (int i=0; i< 3; i++)

clearText();

while (inputData.eof())

{

inputData >> pressure[dataCount];

inputData >> volume [dataCount];

dataCount++;

}

}

void enginePerformance::openInputFile()

{

string filename;

cout <<"please name file."<<endl;

cin >>filename;

  

inputData.open("surface.txt");

if ( inputData.fail())

{

cout <<"Input file is missing"<<endl;

exit(1);

}

return;

}

void enginePerformance::clearText()

{

string garbage;

getline (inputData,garbage);

return;

}

void enginePerformance::setMaxPressure()

{

for(int j=0;j < dataCount;j++)

{

if (j == 0)

maxPressure = pressure[j];

if(pressure[j] >maxPressure)

maxPressure =pressure[j];

}

return;

  

}

void enginePerformance::setMinPressure()

{

for(int j=0; j<dataCount;j++)

{

if (j ==0)

minPressure =pressure[j];

if(pressure[j] <minPressure)

minPressure =pressure[j];

}

return;

  

}

void enginePerformance::setAveragePressure()

{

double sum = 0;

for (int j=1; j<dataCount;j++)

{

if (j ==0 )

sum =pressure[j];

else

sum =sum + pressure[j];

}

averagePressure =sum / dataCount;

return;

}

void enginePerformance::setCompressionRatio()

{

double maxVolume = 0, minVolume = 0;

for (int i=0; i < dataCount; i++)

{

   if (i == 0)

   maxVolume =minVolume = volume[i];

   if (volume[i]>maxVolume)

   maxVolume =volume[i];

   if (volume[i]<minVolume)

   minVolume =volume[i];

  

}

compressionRatio = maxVolume / minVolume;

  

}

void enginePerformance::openOutputFile()

{

string filename;

  

cout<<"Please name output file." <<endl;

cin>>filename;

  

inputData.open (filename);

if ( inputData.fail())

{

cout<<"Please check again you data input"<<endl;

exit(1);

}

return;

}

void enginePerformance::outputReport()

{

openOutputFile ();

report << getDataTitle() <<"report"<<endl;

report <<"Engine ID:" << getEngineID() <<endl;

report <<"Analysis Date:" << getDate() <<endl;

report <<"Engine Performance:" <<getRPM()<<" (RPM)" <<endl;

report <<"Compression Ratio :" <<compressionRatio<<endl;

report <<"Pressure"<<endl;

report <<"Max"<<maxPressure<<endl;

report <<"Min"<<minPressure<<endl;

  

  

  

  

closeOutputFile();

  

return;

  

}

Explanation / Answer

// Changes done are highlighted
// code is compiling wthout any errors now
// you can use surface.txt to use the below code and generate desired output

// C++ code
#include <iostream>
#include <fstream>
#include <string>
#include <cmath>
#include <stdlib.h>
using namespace std;

const int SIZE =100;

class enginePerformance
{
public:
void retreiveData();
void setMaxPressure();
void setMinPressure();
void setAveragePressure();
void setCompressionRatio();
void outputReport ();
  
string getDataTitle()
{return dataTitle;}
string getEngineID()
{return engineID;}
string getDate()
{return date;}
  
  
string getRPM()
{return dataTitle;}
double getCompRatio()
{return compressionRatio;}
double getMaxPressure()
{return averagePressure;}
double getMinPressure()
{return averagePressure;}
double getAveragePressure()
{return averagePressure;}
  
private:
string dataTitle;
string engineID;
string date;
  
double RPM;
double pressure[SIZE];
double volume[SIZE];
int dataCount;
  
double compressionRatio;
double maxPressure;
double minPressure;
double averagePressure;
  
ifstream inputData;
ofstream report;
  
void openInputFile ();
void closeInputFile ();
void openOutputFile ();
void closeOutputFile ();
void clearText ();
};


int main()
{
enginePerformance e;

e.retreiveData();
e.setMaxPressure();
e.setMinPressure();
e.setAveragePressure();
e.setCompressionRatio();
e.outputReport();
return 0;
  
}


void enginePerformance::retreiveData()
{
dataCount = 0;
openInputFile();
getline(inputData, dataTitle);
getline(inputData,engineID);
getline(inputData,date);
inputData >>RPM;
for (int i=0; i< 3; i++)
clearText();
while (inputData.eof())
{
inputData >> pressure[dataCount];
inputData >> volume [dataCount];
dataCount++;
}
}


void enginePerformance::openInputFile()
{
string filename;
cout <<"please name file."<<endl;
cin >>filename;
  
inputData.open("surface.txt");
if ( inputData.fail())
{
cout <<"Input file is missing"<<endl;
exit(1);
}
return;
}


void enginePerformance::clearText()
{
string garbage;
getline (inputData,garbage);
return;

}

void enginePerformance::setMaxPressure()
{


for(int j=0;j < dataCount;j++)
{
if (j == 0)
maxPressure = pressure[j];
if(pressure[j] >maxPressure)
maxPressure =pressure[j];
}
return;
  
}

void enginePerformance::setMinPressure()
{
for(int j=0; j<dataCount;j++)
{
if (j ==0)
minPressure =pressure[j];
if(pressure[j] <minPressure)
minPressure =pressure[j];
}
return;
  
}

void enginePerformance::setAveragePressure()
{
double sum = 0;
for (int j=1; j<dataCount;j++)
{
if (j ==0 )
sum =pressure[j];
else
sum =sum + pressure[j];
}
averagePressure =sum / dataCount;
return;
}

void enginePerformance::setCompressionRatio()
{
double maxVolume = 0, minVolume = 0;
for (int i=0; i < dataCount; i++)
{
if (i == 0)
maxVolume =minVolume = volume[i];
if (volume[i]>maxVolume)
maxVolume =volume[i];
if (volume[i]<minVolume)
minVolume =volume[i];
  
}
compressionRatio = maxVolume / minVolume;
  
}

void enginePerformance::openOutputFile()
{
string filename;
  
cout<<"Please name output file." <<endl;
cin>>filename;
  
// output file is report, should be namedd as report
report.open (filename.c_str());
if ( report.fail())
{
cout<<"Please check again you data input"<<endl;
exit(1);
}
return;
}
void enginePerformance::outputReport()
{
openOutputFile ();
report << getDataTitle() <<"report"<<endl;
report <<"Engine ID:" << getEngineID() <<endl;
report <<"Analysis Date:" << getDate() <<endl;
report <<"Engine Performance:" <<getRPM()<<" (RPM)" <<endl;
report <<"Compression Ratio :" <<compressionRatio<<endl;
report <<"Pressure"<<endl;
report <<"Max"<<maxPressure<<endl;
report <<"Min"<<minPressure<<endl;
  
  
  
  
closeOutputFile();
  
return;
  
}

// close output file
void enginePerformance::closeOutputFile()
{
report.close();
}

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