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Please help fix my code C++, I get 2 errors when running. The code should be...

Please help fix my code C++, I get 2 errors when running. The code should be able to open this file:

labdata.txt

Pallet PAG PAG45982IB 737 4978 OAK
Container AYF AYF23409AA 737 2209 LAS
Container AAA AAA89023DL 737 5932 DFW

Here is my code:


#include <iostream>
#include <string>
#include <fstream>
#include <vector>
#include <cstdlib>
#include <iomanip>

using namespace std;

const int MAXLOAD737 = 46000;
const int MAXLOAD767 = 116000;

class Cargo
{

protected:
string uldtype;
string abbreviation;
string uldid;
int aircraft;
double weight;
string destination;
  
public:

Cargo();

Cargo(const string &uldtype, const string &abbreviation, const string &uldid, const int &aircraft, const double &weight, const string &destination);
  
Cargo(const Cargo &unit);
  
~Cargo();
  
void setuldtype(string);
void setabbreviation(string);
void setuldid(string);
void setaircraft(int);
void setweight(double);
void setdestination(string);
  
string getuldtype() const;
string getabbreviation() const;
string getuldid() const;
int getaircraft() const;
double getweight() const;
string getdestination() const;
  
virtual bool maxweight(int)
{
return 0;
}
  
void output(Cargo &plunit);
};


class Boeing737 : public Cargo
{
private:

public:
Boeing737()
{}
Boeing737(const Cargo &unit) : Cargo(unit)
{}
Boeing737(const string &uldtype, const string &abbreviation, const string &uldid, const int &aircraft, const double &weight, const string &destination);
  
void output(Boeing737 &plunit)
{}
  
~Boeing737()
{}
  
bool maxweight(int total) const;
};


class Boeing767 :: public Cargo
{

private:

public:
Boeing767() :: Cargo()
{}
  
Boeing767(const Cargo &unit) : Cargo(unit)
{}
  
Boeing767(const string &uldtype, const string &abbreviation, const string, const string &uldid, const int &aircraft, const double &weight, const string &destination);

~Boeing767()
{}

bool maxweight(int total);
};

void load737(const string tttt, const string abrv, const string id, const int craft, const double wt,
const string dest);

void load767(const string tttt, const string abrv, const string id, const int craft,
const double wt, const string dest);

void input();

void vecprint(vector <Boeing737> &vec737, vector <Boeing767> &vec767);

int main()
{
input();
return 0;
}

Cargo::Cargo()
{
uldtype = "XXX";
abbreviation = " ";
uldid = "xxxxxIB";
aircraft = 700;
weight = 0.0;
destination = "NONE";
}

Cargo::Cargo(const string &uld, const string &abrv, const string &id,
const int &craft, const double &wt, const string &dest)
{
uldtype = uld;
abbreviation = abrv;
uldid = id;
aircraft = craft;
weight = wt;
destination = dest;
}   

Cargo::Cargo(const Cargo &unit1)
{
uldtype = unit1.uldtype;
abbreviation = unit1.abbreviation;
uldid = unit1.uldid;
aircraft = unit1.weight;
weight = unit1.weight;
destination = unit1.destination;
}

Cargo::~Cargo()
{
cout << "Cargo destructor called\n\n";
}

void Cargo::setuldtype(string type)
{
uldtype = type;
}

void Cargo::setabbreviation(string abrv)
{
abbreviation = abrv;
}

void Cargo::setuldid(string id)
{
uldid = id;
}

void Cargo::setaircraft(int air)
{
aircraft = air;
}

void Cargo::setweight(double wt)
{
weight = wt;
}

void Cargo::setdestination(string dest)
{
destination = dest;
}

string Cargo::getuldtype() const
{
return uldtype;
}

string Cargo::getabbreviation() const
{
return abbreviation;
}

string Cargo::getuldid() const
{
return uldid;
}

int Cargo::getaircraft() const
{
return aircraft;
}

double Cargo::getweight() const
{
return weight;
}

string Cargo::getdestination() const
{
return destination;
}

Boeing737::Boeing737(const string &uld, const string &abrv, const string &id, const int &craft, const double &wt, const string &dest)
{
uldtype = uld;
abbreviation = abrv;
uldid = id;
aircraft = craft;
weight = wt;
destination = dest;
}
bool Boeing737::maxweight(int total) const
{
return total < MAXLOAD737;
}

Boeing767::Boeing767(const string &uld, const string &abrv, const string &id, const int &craft, const double &wt, const string &dest)
{
uldtype = uld;
abbreviation == abrv;
uldid = id;
aircraft = craft;
weight = wt;
destination = dest;
}
bool Boeing767::maxweight(int total)
{
return total < MAXLOAD767;
}

void load737(vector<Boeing737> &vec737, const string tttt, const string abrv, const string id, const int craft, const double wt, const string dest,
int &total737wt)
{
total737wt = total737wt + wt;
Boeing737 plane(tttt, abrv, id, craft, wt, dest);
if (plane.maxweight(total737wt))
{
vec737.push_back(plane);
}
else
{
total737wt = total737wt - wt;
cout << "noncomply\n";
}
}
  
void load767(vector <Boeing767> &vec767, const string tttt, const string abrv, const string id, const int craft, const double wt, const string dest,
int &total767wt)
  
{
Boeing767 plane (tttt, abrv, id, craft, wt, dest);
if (plane.maxweight(total767wt))
{
vec767.push_back(plane);
}
else
{
total767wt = total767wt - wt;
cout << "noncomply\n";
}
}
  
void Cargo::output(Cargo &plunit)
{
cout << fixed << showpoint << setprecision(2);
cout << setw(19) << "Unit load type: " << uldtype << endl;
cout << setw(19) << "Unit abbreviation: " << abbreviation << endl;
cout << setw(19) << "Unit identifier: " << uldid << endl;
cout << setw(19) << "Aircraft type: " << aircraft << endl;
cout << setw(19) << "Unit weight: " << weight << " pounds" << endl;
cout << setw(19) << "Destination code: " << destination << endl;
}
void input()
{
string type;
string abrv;
string id;
int air;
double wt;
string dest;
int total737wt = 0;
int total767wt = 0;
vector<Boeing737> vecptr737;
vector<Boeing767> vecptr767;
ifstream inputFile;
  
if(!inputFile)
{
std::cerr <<"Error opening the file"<<endl;
exit(99);
}
while (inputFile >> type)
{
inputFile >> abrv;
inputFile >> id;
inputFile >> air;
inputFile >> wt;
inputFile >> dest;
if (air==737)
{
load737(vecptr737, type, abrv, id, air, wt, dest, total737wt);
}
else if (air == 767)
{
load767(vecptr767,type, abrv, id, air, wt, dest, total767wt);
}
else
cout << "Unknown aircraft type\n";
}
inputFile.close();
  
for(int i = 0; i < vecptr737.size(); i++)
{
cout << "737 unit #" << i + 1 << endl;
cout << fixed << showpoint << setprecision(2);
cout << setw(19) << "Unit load type: " << vecptr737[i].getuldtype() << endl;
cout << setw(19) << "Unit abbreviation: " << vecptr737[i].getabbreviation() << endl;
cout << setw(19) << "Unit identifier: " << vecptr737[i].getuldid() << endl;
cout << setw(19) << "Aircraft type: " << vecptr737[i].getaircraft() << endl;
cout << setw(19) << "Unit weight: " << vecptr737[i].getweight() << " pounds" << endl;
cout << setw(19) << "Destination code: " << vecptr737[i].getdestination()<< endl;
}
  
for(int i = 0; i < vecptr767.size(); i++)
{
cout << "767 unit #" << i + 1 << endl;
cout << fixed << showpoint << setprecision(2);
cout << setw(19) << "Unit load type: " << vecptr767[i].getuldtype() << endl;
cout << setw(19) << "Unit abbreviation: " << vecptr767[i].getabbreviation() << endl;
cout << setw(19) << "Unit identifier: " << vecptr767[i].getuldid() << endl;
cout << setw(19) << "Aircraft type: " << vecptr767[i].getaircraft() << endl;
cout << setw(19) << "Unit weight: " << vecptr767[i].getweight() << " pounds" << endl;
cout << setw(19) << "Destination code: " << vecptr767[i].getdestination()<< endl;
}
}
  
  

engineering   Computer-Science   
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Homework Answers

Answer #1
  • In the line class Boeing737 :: public Cargo single : must be used to inherit cargo , not ::
  • in the line Boeing767() :: Cargo() use single : instead of ::
  • In the line Boeing767(const string &uldtype, const string &abbreviation, const string, const string &uldid, const int &aircraft, const double &weight, const string &destination); The underlined part is redundant, it is not present in the definition of this constructor, so remove it.
  • In the input() function, file in not being opened , so change the ifstream inputFile; to ifstream inputFile("labdata.txt");

Modified program:

#include <iostream>
#include <string>
#include <fstream>
#include <vector>
#include <cstdlib>
#include <iomanip>

using namespace std;

const int MAXLOAD737 = 46000;
const int MAXLOAD767 = 116000;

class Cargo
{

protected:
string uldtype;
string abbreviation;
string uldid;
int aircraft;
double weight;
string destination;
  
public:

Cargo();

Cargo(const string &uldtype, const string &abbreviation, const string &uldid, const int &aircraft, const double &weight, const string &destination);
  
Cargo(const Cargo &unit);
  
~Cargo();
  
void setuldtype(string);
void setabbreviation(string);
void setuldid(string);
void setaircraft(int);
void setweight(double);
void setdestination(string);
  
string getuldtype() const;
string getabbreviation() const;
string getuldid() const;
int getaircraft() const;
double getweight() const;
string getdestination() const;
  
virtual bool maxweight(int)
{
return 0;
}
  
void output(Cargo &plunit);
};


class Boeing737 : public Cargo
{
private:

public:
Boeing737() : Cargo()
{}
Boeing737(const Cargo &unit) : Cargo(unit)
{}
Boeing737(const string &uldtype, const string &abbreviation, const string &uldid, const int &aircraft, const double &weight, const string &destination);
  
void output(Boeing737 &plunit)
{}
  
~Boeing737()
{}
  
bool maxweight(int total) const;
};


class Boeing767 : public Cargo
{

private:

public:
Boeing767() : Cargo()
{}
  
Boeing767(const Cargo &unit) : Cargo(unit)
{}
  
Boeing767(const string &uldtype, const string &abbreviation, const string &uldid, const int &aircraft, const double &weight, const string &destination);

~Boeing767()
{}

bool maxweight(int total);
};

void load737(const string tttt, const string abrv, const string id, const int craft, const double wt,
const string dest);

void load767(const string tttt, const string abrv, const string id, const int craft,
const double wt, const string dest);

void input();

void vecprint(vector <Boeing737> &vec737, vector <Boeing767> &vec767);

int main()
{
input();
return 0;
}

Cargo::Cargo()
{
uldtype = "XXX";
abbreviation = " ";
uldid = "xxxxxIB";
aircraft = 700;
weight = 0.0;
destination = "NONE";
}

Cargo::Cargo(const string &uld, const string &abrv, const string &id,
const int &craft, const double &wt, const string &dest)
{
uldtype = uld;
abbreviation = abrv;
uldid = id;
aircraft = craft;
weight = wt;
destination = dest;
}   

Cargo::Cargo(const Cargo &unit1)
{
uldtype = unit1.uldtype;
abbreviation = unit1.abbreviation;
uldid = unit1.uldid;
aircraft = unit1.weight;
weight = unit1.weight;
destination = unit1.destination;
}

Cargo::~Cargo()
{
cout << "Cargo destructor called\n\n";
}

void Cargo::setuldtype(string type)
{
uldtype = type;
}

void Cargo::setabbreviation(string abrv)
{
abbreviation = abrv;
}

void Cargo::setuldid(string id)
{
uldid = id;
}

void Cargo::setaircraft(int air)
{
aircraft = air;
}

void Cargo::setweight(double wt)
{
weight = wt;
}

void Cargo::setdestination(string dest)
{
destination = dest;
}

string Cargo::getuldtype() const
{
return uldtype;
}

string Cargo::getabbreviation() const
{
return abbreviation;
}

string Cargo::getuldid() const
{
return uldid;
}

int Cargo::getaircraft() const
{
return aircraft;
}

double Cargo::getweight() const
{
return weight;
}

string Cargo::getdestination() const
{
return destination;
}

Boeing737::Boeing737(const string &uld, const string &abrv, const string &id, const int &craft, const double &wt, const string &dest)
{
uldtype = uld;
abbreviation = abrv;
uldid = id;
aircraft = craft;
weight = wt;
destination = dest;
}
bool Boeing737::maxweight(int total) const
{
return total < MAXLOAD737;
}

Boeing767::Boeing767(const string &uld, const string &abrv, const string &id, const int &craft, const double &wt, const string &dest)
{
uldtype = uld;
abbreviation == abrv;
uldid = id;
aircraft = craft;
weight = wt;
destination = dest;
}
bool Boeing767::maxweight(int total)
{
return total < MAXLOAD767;
}

void load737(vector<Boeing737> &vec737, const string tttt, const string abrv, const string id, const int craft, const double wt, const string dest,
int &total737wt)
{
total737wt = total737wt + wt;
Boeing737 plane(tttt, abrv, id, craft, wt, dest);
if (plane.maxweight(total737wt))
{
vec737.push_back(plane);
}
else
{
total737wt = total737wt - wt;
cout << "noncomply\n";
}
}
  
void load767(vector <Boeing767> &vec767, const string tttt, const string abrv, const string id, const int craft, const double wt, const string dest,
int &total767wt)
  
{
Boeing767 plane (tttt, abrv, id, craft, wt, dest);
if (plane.maxweight(total767wt))
{
vec767.push_back(plane);
}
else
{
total767wt = total767wt - wt;
cout << "noncomply\n";
}
}
  
void Cargo::output(Cargo &plunit)
{
cout << fixed << showpoint << setprecision(2);
cout << setw(19) << "Unit load type: " << uldtype << endl;
cout << setw(19) << "Unit abbreviation: " << abbreviation << endl;
cout << setw(19) << "Unit identifier: " << uldid << endl;
cout << setw(19) << "Aircraft type: " << aircraft << endl;
cout << setw(19) << "Unit weight: " << weight << " pounds" << endl;
cout << setw(19) << "Destination code: " << destination << endl;
}
void input()
{
string type;
string abrv;
string id;
int air;
double wt;
string dest;
int total737wt = 0;
int total767wt = 0;
vector<Boeing737> vecptr737;
vector<Boeing767> vecptr767;
ifstream inputFile("labdata.txt");
  
if(!inputFile)
{
std::cerr <<"Error opening the file"<<endl;
exit(99);
}
while (inputFile >> type)
{
inputFile >> abrv;
inputFile >> id;
inputFile >> air;
cout<<air;
inputFile >> wt;
inputFile >> dest;
if (air==737)
{
load737(vecptr737, type, abrv, id, air, wt, dest, total737wt);
}
else if (air == 767)
{
load767(vecptr767,type, abrv, id, air, wt, dest, total767wt);
}
else
cout << "Unknown aircraft type\n";
}
inputFile.close();
for(int i = 0; i < vecptr737.size(); i++)
{
cout << "737 unit #" << i + 1 << endl;
cout << fixed << showpoint << setprecision(2);
cout << setw(19) << "Unit load type: " << vecptr737[i].getuldtype() << endl;
cout << setw(19) << "Unit abbreviation: " << vecptr737[i].getabbreviation() << endl;
cout << setw(19) << "Unit identifier: " << vecptr737[i].getuldid() << endl;
cout << setw(19) << "Aircraft type: " << vecptr737[i].getaircraft() << endl;
cout << setw(19) << "Unit weight: " << vecptr737[i].getweight() << " pounds" << endl;
cout << setw(19) << "Destination code: " << vecptr737[i].getdestination()<< endl;
}
  
for(int i = 0; i < vecptr767.size(); i++)
{
cout << "767 unit #" << i + 1 << endl;
cout << fixed << showpoint << setprecision(2);
cout << setw(19) << "Unit load type: " << vecptr767[i].getuldtype() << endl;
cout << setw(19) << "Unit abbreviation: " << vecptr767[i].getabbreviation() << endl;
cout << setw(19) << "Unit identifier: " << vecptr767[i].getuldid() << endl;
cout << setw(19) << "Aircraft type: " << vecptr767[i].getaircraft() << endl;
cout << setw(19) << "Unit weight: " << vecptr767[i].getweight() << " pounds" << endl;
cout << setw(19) << "Destination code: " << vecptr767[i].getdestination()<< endl;
}
}

output:
737Cargo destructor called 737Cargo destructor called Cargo destructor called 737Cargo destructor called Cargo destructor cal​​​​​​​

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