Derek Elder: MultipleInheritance program

2011-02-19T23:04:06Z

MultipleInheritance program

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__TOC__
==Main.cpp==
<pre>
#include <iostream>
#include <fstream>
#include <string>
#include "Faculty.h"
#include "GradStudent.h"
#include "Person.h"
#include "Student.h"
#include "StudentVoter.h"
#include "Voter.h"
using namespace std;

void clearScreen();
void Pause();
char displayMenuAndGetSelection();

void main()
{
int i, numDegrees;
char menuChoice = ' ';
bool done = false;
string *fs, *fs2;
fs = new string[2];
fs[0] = "History";
fs[1] = "Philosophy";
vector<string> vf;

StudentVoter sv1("Harold",88,"000-00-0152",3.99f,"Independent"), sv2, sv4;
StudentVoter sv3(sv1);
Faculty f1("Lucas",50,"999-88-777",2,fs), f2, f4;
Faculty f3(f1);

while(!done)
{
menuChoice = displayMenuAndGetSelection();
clearScreen();
switch(menuChoice)
{
case '1':
cout<<"Checking out the StudentVoter class.\n";
cout<<"\nStudentVoter sv1(\"Harold\",88,\"000-00-0152\",3.99f,\"Independent\")\n"
<<"Checking out the constructor\n";
cout<<sv1;
cout<<"\n----------------------";
cout<<"\nStudentVoter sv2, checking out the default constructor\n";
cout<<sv2;
cout<<"\n----------------------";
cout<<"\nStudentVoter sv3(sv1), checking out the copy constructor\n";
cout<<sv3;
cout<<"\n----------------------";
cout<<"\n\nHit enter to continue: ";
cin.get();
sv4 = sv2;
cout<<"\nStudentVoter sv4 = sv2, checking out the assignment operator\n";
cout<<sv4;
cout<<"\n----------------------";
cout<<"\nChecking out the Accessors\n";
//cout<<"\nsv1.Name() = "<<sv1.Name();
//cout<<"\nsv1.Age() = "<<sv1.Age();
//cout<<"\nsv1.SSN() = "<<sv1.SSN();
//cout<<"\nsv1.GPA() = "<<sv1.GPA();
//cout<<"\nsv1.PartyAffiliation() = "<<sv1.PartyAffiliation();
cout<<"sv1.Type() = "<<sv1.Type();
cout<<"\n----------------------";
cout<<"\nBefore input for StudentVoter sv2.\n";
cin>>sv2;
cout<<"\n----------------------";
cout<<"\nStudentVoter sv2 follows:\n";
cout<<sv2;
Pause();
done = false;
break;
case '2':
/*Mutator tests
string fs3[3];
fs3[0] = string("Matchematics");
fs3[1] = string("English");
fs3[2] = string("Computer Sciene");
f1.Degrees(fs3,3);
cout <<"\nAfter:"
<<"\n string fs3[3];"
<<"\n fs3[0] = string("Matchematics");
<<"\n fs3[1] = string("English");
<<"\n fs3[2] = string("Computer Sciene");
<<"\n f1.Degrees(fs3,3);"
<<"\nf1 follows:\n"<<f1
//---------------------------------------------
fs[0] = string("Writing");
fs[1] = string("Business");
const Faculty f5("George Shaw",65,"294-32-2952",1.1,fs,2);
cout << "\nAfter:"
<< "\n string fs[2];"
<< "\n fs[0] = string("Writing");
<< "\n fs[1] = string("Business");
<< "\n const Faculty f5("George Shaw",65,"294-32-2952",1.1,fs,2);
<< "\nf5 follows:\n"<<f5;*/
cout<<"Checking out the Faculty class.\n";
cout<<"\nFaculty f1(\"Lucas\",50,\"999-88-777\",2,fs), checking out the constructor\n";
cout<<f1;
cout<<"\nContents of String *fs follows:\n";
cout<<"fs[0] = "<<fs[0];
cout<<"\n";
cout<<"fs[1] = "<<fs[1];
cout<<"\n----------------------";
cout<<"\nFaculty f2, checking out the default constructor\n";
cout<<f2;
cout<<"\n----------------------";
cout<<"\nFaculty f3(f1), checking out the copy constructor\n";
cout<<f3;
cout<<"\n----------------------";
cout<<"\n\nHit enter to continue: ";
cin.get();
f4 = f2;
cout<<"\nFaculty f4 = f2, checking out the assignment operator\n";
cout<<f4;
cout<<"\n----------------------";
cout<<"\nChecking out the Accessors\n";
//cout<<"\nf1.Name() = "<<f1.Name();
//cout<<"\nf1.Age() = "<<f1.Age();
//cout<<"\nf1.SSN() = "<<f1.SSN();
//cout<<"\nf1.GPA() = "<<f1.GPA();
cout<<"\nf1.NumberOfDegrees() = "<<f1.NumberOfDegrees();
fs2 = f1.Degrees(numDegrees);
cout<<"\nAfter string *fs2 = f1.Degrees(numDegrees)";
for(i = 0;i < numDegrees;i++)
cout<<"\nDegree Number "<<(i+1)<<": "<<fs2[i];
cout<<"\nf1.Type() = "<<f1.Type();
vf = f1.Degrees(); //Vector testing
cout<<"\nAfter vf = f1.Degrees();";
cout<<"\nvf.size() = "<<vf.size();
for(i = 0;i < static_cast<int>(vf.size());i++)
cout<<"\nDegree Number "<<(i+1)<<": "<<vf[i];
cout<<"\n----------------------";
cout<<"\nBefore input for Faculty f2.\n";
cin>>f2;
cout<<"\n----------------------";
cout<<"\nFaculty f2 follows:\n";
cout<<f2;
Pause();
done = false;
break;
case '3':
cout<<"Program terminated, goodbye.";
cin.get();
done = true;
break;
default:
cout<<"Incorrect choice selected"<<endl;
Pause();
done = false;
break;
}
}
delete[] fs;
delete[] fs2;
}
void clearScreen()
{
system("cls");
}
void Pause()
{
cout<<"\n\nPress 'ENTER' to return to the main menu...\n";
cin.get();
}
char displayMenuAndGetSelection()
{
char choice;
clearScreen();
cout<<"\n\n\n";
cout<<"'1' -- Checking out the StudentVoter class.\n\n";
cout<<"'2' -- Checking the Faculty class.\n\n";
cout<<"'3' -- Quit the program.\n\n";
cin>>choice;
cin.ignore(50,'\n');
return choice;
}
</pre>
==Person.h==
<pre>
#pragma once
#include <iostream>
#include <string>
using namespace std;

class Person
{
private:
char* m_name;
int m_age;
string m_ssn;
public:
Person();
Person(char* name, int age, string ssn);
Person(const Person &p);
virtual ~Person();
Person& operator=(const Person& p);
void Name(const char* const name);
string Name() const;
void Age(int age);
int Age() const;
void SSN(string ssn);
string SSN() const;
string virtual Type() const;
virtual void Read(istream& is);
virtual void Write(ostream& os) const;
};
ostream& operator<<(ostream& os, const Person& p);
istream& operator>>(istream& is, Person& p);
</pre>
==Person.cpp==
<pre>
#include <iostream>
#include "Person.h"
using namespace std;

Person::Person()
{
int i;
m_name = new char[3];
for(i = 0;i < 2; i++)
m_name[i] = '*';
m_name[2] = '\0';
m_age = 0;
m_ssn = "***-**-****";
}
Person::Person(char* name, int age, string ssn)
{
int i;
m_name = new char[(int)strlen(name)+1];
for(i = 0;i <= (int)strlen(name);i++)
m_name[i] = name[i];
m_age = age;
m_ssn = ssn;
}
Person::Person(const Person &p)
{
int i;
m_name = new char[((int)strlen(p.m_name)+1)];
for(i = 0;i <= (int)strlen(p.m_name);i++)
m_name[i] = p.m_name[i];
m_age = p.m_age;
m_ssn = p.m_ssn;
}
Person::~Person()
{
if(m_name != NULL)
{
delete[] m_name;
}
}
Person& Person::operator=(const Person& p)
{
if(this != &p)
{
int i;
delete[] m_name;
m_name = new char[((int)strlen(p.m_name)+1)];
for(i = 0; i <= (int)strlen(p.m_name);i++)
m_name[i] = p.m_name[i];
m_age = p.m_age;
m_ssn = p.m_ssn;
}
return *this;
}
void Person::Name(const char* const name)
{
int i;
delete[] m_name;
m_name = new char[((int)strlen(name)+1)];
for(i = 0;i <= (int)strlen(name);i++)
m_name[i] = name[i];
}
string Person::Name() const
{
/*int i
for(i = 0;i <= (int)strlen(m_name);i++)
cout<<m_name[i];*/
return string(m_name);
}
void Person::Age(int age)
{
m_age = age;
}
int Person::Age() const
{
return m_age;
}
void Person::SSN(string ssn)
{
m_ssn = ssn;
}
string Person::SSN() const
{
return m_ssn;
}
string Person::Type() const
{
return string("This is a Person Object");
}
void Person::Read(istream& is)
{
string name;

if(is == cin)
{
cout<<"Enter the name: "<<flush;
getline(is,name);
cout<<"Enter the age: "<<flush;
is>>m_age;
cout<<"Enter the social security number: "<<flush;
is>>m_ssn;
is.get();
}
else
{
getline(is,name);
if(!is)
return;
if(name.length() == 0)
getline(is,name);
is>>m_age;
is>>m_ssn;
is.get();
}
int i;
delete[] m_name;
m_name = new char[(name.length()+1)];
for(i = 0;i < (int)name.length();i++)
m_name[i] = name[i];
m_name[name.length()] = '\0';
}
void Person::Write(ostream& os) const
{
if(os == cout)
os<<"Name: "<<m_name<<"\nAge: "<<m_age<<"\nSSN: "<<m_ssn;
else
os<<m_name<<'\n'<<m_age<<'\n'<<m_ssn;
}
ostream& operator<<(ostream& os, const Person& p)
{
p.Write(os);
return os;
}
istream& operator>>(istream& is, Person& p)
{
p.Read(is);
return is;
}
</pre>
==Student.h==
<pre>
#pragma once
#include <iostream>
#include <string>
#include "Person.h"
using namespace std;

class Student : public virtual Person
{
private:
float m_gpa;
public:
Student();
Student(char* name, int age, string ssn, float gpa);
Student(const Student &s);
const Student& operator=(const Student& s);
float GPA() const;
void GPA(float gpa);
string Type() const;
void Read(istream& is);
void Write(ostream& os) const;
};
ostream& operator<<(ostream& os, const Student& s);
istream& operator>>(istream& is, Student& s);
</pre>
==Student.cpp==
<pre>
#include <iostream>
#include "Student.h"
using namespace std;

Student::Student() : Person(), m_gpa(0.0)
{}
Student::Student(char* name, int age, string ssn, float gpa) : Person(name, age, ssn), m_gpa(gpa)
{}
Student::Student(const Student &s) : Person(s), m_gpa(s.m_gpa)
{}
const Student& Student::operator=(const Student& s)
{
if(this != &s)
{
Person::operator=(s);
m_gpa = s.m_gpa;
}
return *this;
}
float Student::GPA() const
{
return m_gpa;
}
void Student::GPA(float gpa)
{
m_gpa = gpa;
}
string Student::Type() const
{
return string("This is a Student Object");
}
void Student::Read(istream& is)
{
Person::Read(is);
if(is == cin)
{
cout<<"Enter the GPA: "<<flush;
is>>m_gpa;
is.get();
}
else
{
is>>m_gpa;
is.get();
}
}
void Student::Write(ostream& os) const
{
Person::Write(os);
if(os == cout)
os<<"\nGPA: "<<m_gpa;
else
os<<'\n'<<m_gpa;
}
ostream& operator<<(ostream& os, const Student& s)
{
s.Write(os);
return os;
}
istream& operator>>(istream& is, Student& s)
{
s.Read(is);
return is;
}
</pre>
==Voter.h==
<pre>
#pragma once
#include <iostream>
#include <string>
#include "Person.h"
using namespace std;

class Voter : public virtual Person
{
private:
string m_partyAffiliation;
public:
Voter();
Voter(char * name, int age, string ssn, string partyAffiliation);
Voter(const Voter &v);
const Voter& operator=(const Voter& v);
void PartyAffiliation(string partyAffiliation);
string PartyAffiliation() const;
string Type() const;
void Read(istream& is);
void Write(ostream& os) const;
};
ostream& operator<<(ostream& os, const Voter& v);
istream& operator>>(istream& is, Voter& v);
</pre>
==Voter.cpp==
<pre>
#include <iostream>
#include "Voter.h"
using namespace std;

Voter::Voter() : Person(), m_partyAffiliation("")
{}
Voter::Voter(char* name, int age, string ssn, string partyAffiliation) : Person(name, age, ssn), m_partyAffiliation(partyAffiliation)
{}
Voter::Voter(const Voter &v) : Person(v), m_partyAffiliation(v.m_partyAffiliation)
{}
const Voter& Voter::operator=(const Voter& v)
{
if(this != &v)
{
Person::operator=(v);
m_partyAffiliation = v.m_partyAffiliation;
}
return *this;
}
void Voter::PartyAffiliation(string partyAffiliation)
{
m_partyAffiliation = partyAffiliation;
}
string Voter::PartyAffiliation() const
{
return m_partyAffiliation;
}
string Voter::Type() const
{
return string("This is a Voter Object");
}
void Voter::Read(istream& is)
{
Person::Read(is);
if(is == cin)
{
cout<<"Enter the party affiliation: "<<flush;
is>>m_partyAffiliation;
is.get();
}
else
is>>m_partyAffiliation;
}
void Voter::Write(ostream& os) const
{
Person::Write(os);
if(os == cout)
os<<"\nParty affiliation: "<<m_partyAffiliation;
else
os<<'\n'<<m_partyAffiliation;
}
ostream& operator<<(ostream& os, const Voter& v)
{
v.Write(os);
return os;
}
istream& operator>>(istream& is, Voter& v)
{
v.Read(is);
return is;
}
</pre>
==StudentVoter.h==
<pre>
#pragma once
#include <iostream>
#include <string>
#include "Student.h"
#include "Voter.h"
using namespace std;

class StudentVoter : public Student, public Voter
{
private:
//No additional data.
public:
StudentVoter();
StudentVoter(char* name, int age, string ssn, float gpa, string partyAffiliation);
StudentVoter(const StudentVoter& sv);
const StudentVoter& operator=(const StudentVoter& sv);
string Type() const;
void Read(istream& is);
void Write(ostream& os) const;
};
ostream& operator<<(ostream& os, const StudentVoter& sv);
istream& operator>>(istream& is, StudentVoter& sv);
</pre>
==StudentVoter.cpp==
<pre>
#include <iostream>
#include "StudentVoter.h"
using namespace std;

StudentVoter::StudentVoter() : Student(), Voter(), Person()
{}
StudentVoter::StudentVoter(char* name, int age, string ssn, float gpa, string partyAffiliation)
: Student(name,age,ssn,gpa), Voter(name,age,ssn,partyAffiliation), Person(name,age,ssn)
{}
StudentVoter::StudentVoter(const StudentVoter& sv) : Student(sv), Voter(sv), Person(sv)
{}
const StudentVoter& StudentVoter::operator=(const StudentVoter& sv)
{
if(this != &sv)
{
Student::operator=(sv);
PartyAffiliation(sv.PartyAffiliation());
}
return *this;
}
string StudentVoter::Type() const
{
return string("This is a StudentVoter Object");
}
void StudentVoter::Read(istream& is)
{
string partyaffiliation;
Student::Read(is);
if (is == cin)
{
cout<<"Enter the party affiliation: "<<flush;
is>>partyaffiliation;
is.get();
}
else
{
is>>partyaffiliation;
is.get();
}
PartyAffiliation(partyaffiliation);
}
void StudentVoter::Write(ostream& os) const
{
Student::Write(os);
if (os == cout)
os<<"\nParty affiliation: "<<PartyAffiliation();
else
os<<'\n'<<PartyAffiliation();
}
ostream& operator<<(ostream& os, const StudentVoter& sv)
{
sv.Write(os);
return os;
}
istream& operator>>(istream& is, StudentVoter& sv)
{
sv.Read(is);
return is;
}
</pre>
==Faculty.h==
<pre>
#pragma once
#include <iostream>
#include <string>
#include <vector>
#include "Person.h"
using namespace std;

class Faculty : public Person
{
private:
int m_numberOfDegrees;
string* m_degrees;
public:
Faculty();
Faculty(char* name, int age, string ssn, int numberOfDegrees, string* degrees);
Faculty(const Faculty &f);
~Faculty();
const Faculty& operator=(const Faculty& f);
void NumberOfDegrees(int degrees);
int NumberOfDegrees() const;
void Degrees(const string* degrees, int numberOfDegrees);
string* Degrees(int &numberOfDegrees) const;
void Degrees(const vector<string> &vs);
vector<string> Degrees() const;
string Type() const;
void Read(istream& is);
void Write(ostream& os) const;
};
ostream& operator<<(ostream& os, const Faculty& f);
istream& operator>>(istream& is, Faculty& f);
</pre>
==Faculty.cpp==
<pre>
#include <iostream>
#include "Faculty.h"
using namespace std;

Faculty::Faculty() : Person(), m_numberOfDegrees(0)
{
int i;
m_degrees = new string[3];
for(i = 0;i < 2; i++)
m_degrees[i] = '*';
m_degrees[2] = '\0';
}
Faculty::Faculty(char* name, int age, string ssn, int numberOfDegrees, string* degrees)
: Person(name, age, ssn), m_numberOfDegrees(numberOfDegrees)
{
if(m_numberOfDegrees > 0)
{
int i;
m_degrees = new string[m_numberOfDegrees];
for(i = 0;i < m_numberOfDegrees;i++)
m_degrees[i] = degrees[i];
}
else
m_degrees = NULL;
}
Faculty::Faculty(const Faculty& f) : Person(f), m_numberOfDegrees(f.m_numberOfDegrees)
{
if(m_numberOfDegrees < 1)
m_degrees = NULL;
else
{
int i;
m_degrees = new string[m_numberOfDegrees];
for (i = 0;i < m_numberOfDegrees;i++)
m_degrees[i] = f.m_degrees[i];
}
}
Faculty::~Faculty()
{
if(m_degrees != NULL)
{
delete[] m_degrees;
}
}
const Faculty& Faculty::operator=(const Faculty& f)
{
if(this != &f)
{
Person::operator=(f);
m_numberOfDegrees = f.m_numberOfDegrees;
}
return *this;
}
void Faculty::NumberOfDegrees(int numberOfDegrees)
{
m_numberOfDegrees = numberOfDegrees;
}
int Faculty::NumberOfDegrees() const
{
return m_numberOfDegrees;
}
void Faculty::Degrees(const string* degrees, int numberOfDegrees)
{
delete[] m_degrees;
m_numberOfDegrees = numberOfDegrees;
if(m_numberOfDegrees < 1)
m_degrees = NULL;
else
{
int i;
m_degrees = new string[m_numberOfDegrees];
for (i = 0;i < m_numberOfDegrees;i++)
m_degrees[i] = degrees[i];
}
}
string* Faculty::Degrees(int &numberOfDegrees) const
{
string* temp;
numberOfDegrees = m_numberOfDegrees;

if(m_numberOfDegrees < 1)
temp = NULL;
else
{
int i;
temp = new string[numberOfDegrees];
for(i = 0;i < m_numberOfDegrees;i++)
temp[i] = m_degrees[i];
}
return temp;
}
void Faculty::Degrees(const vector<string> &vs)
{
delete [] m_degrees;
m_numberOfDegrees = static_cast<int>(vs.size());
if(m_numberOfDegrees < 1)
m_degrees = NULL;
else
{
int i;
m_degrees = new string[m_numberOfDegrees];

for(i = 0;i < m_numberOfDegrees;i++)
m_degrees[i] = vs[i];
}
}
vector<string> Faculty::Degrees() const
{
vector<string> temp;
if(m_numberOfDegrees > 0)
{
int i;
for(i = 0;i < m_numberOfDegrees;i++)
temp.push_back(m_degrees[i]);
}
return temp;
}
string Faculty::Type() const
{
return string("This is a Faculty Object");
}
void Faculty::Read(istream& is)
{
Person::Read(is);
delete[] m_degrees;
if(is == cin)
{
cout<<"Enter the number of degrees: "<<flush;
is>>m_numberOfDegrees;
is.get();
}
else
{
is>>m_numberOfDegrees;
is.get();
}
if(m_numberOfDegrees < 1)
m_degrees = NULL;
else
{
int i;
m_degrees = new string[m_numberOfDegrees];
for (i = 0;i < m_numberOfDegrees;i++)
{
if (is == cin)
cout<<"Enter the name of degree "<<(i+1)<<": "<<flush;
getline(is,m_degrees[i]);
}
}
}
void Faculty::Write(ostream& os) const
{
Person::Write(os);
if(os == cout)
os<<"\nNumber of Degrees: "<<m_numberOfDegrees;
else
os<<'\n'<<m_numberOfDegrees;
if(m_numberOfDegrees < 1)
return;
else
{
int i;
for (i = 0;i < m_numberOfDegrees;i++)
{
if(os == cout)
os<<"\nDegree "<<(i+1)<<": "<<m_degrees[i];
else
os<<'\n'<<m_degrees[i];
}
}
}
ostream& operator<<(ostream& os, const Faculty& f)
{
f.Write(os);
return os;
}
istream& operator>>(istream& is, Faculty& f)
{
f.Read(is);
return is;
}
</pre>
==GradStudent.h==
<pre>
#pragma once
#include <iostream>
#include <string>
#include "Student.h"
using namespace std;

class GradStudent : public Student
{
private:
string m_researchArea;
public:
GradStudent();
GradStudent(char * name, int age, string ssn, float gpa, string researchArea);
GradStudent(const GradStudent &gs);
const GradStudent& operator=(const GradStudent& gs);
string ResearchArea() const;
void ResearchArea(string researcharea);
string Type() const;
void Read(istream& is);
void Write(ostream& os) const;
};
ostream& operator<<(ostream& os, const GradStudent& gs);
istream& operator>>(istream& is, GradStudent& gs);
</pre>
==GradStudent.cpp==
<pre>
#include <iostream>
#include "GradStudent.h"
using namespace std;

GradStudent::GradStudent() : Student(), m_researchArea("")
{}
GradStudent::GradStudent(char * name, int age, string ssn, float gpa, string researchArea)
: Student(name, age, ssn, gpa), m_researchArea(researchArea)
{}
GradStudent::GradStudent(const GradStudent& gs) : Student(gs), m_researchArea(gs.m_researchArea)
{}
const GradStudent& GradStudent::operator=(const GradStudent& gs)
{
if(this != &gs)
{
Student::operator=(gs);
m_researchArea = gs.m_researchArea;
}
return *this;
}
string GradStudent::ResearchArea() const
{
return m_researchArea;
}
void GradStudent::ResearchArea(string researchArea)
{
m_researchArea = researchArea;
}
string GradStudent::Type() const
{
return string("This is a GradStudent Object");
}
void GradStudent::Read(istream& is)
{
Student::Read(is);
if(is == cin)
{
cout<<"Enter the Research area: "<<flush;
is>>m_researchArea;
is.get();
}
else
{
is>>m_researchArea;
is.get();
}
}
void GradStudent::Write(ostream& os) const
{
Student::Write(os);
if(os == cout)
os<<"\nResearch area: "<<m_researchArea;
else
os<<'\n'<<m_researchArea;
}
ostream& operator<<(ostream& os, const GradStudent& gs)
{
gs.Write(os);
return os;
}
istream& operator>>(istream& is, GradStudent& gs)
{
gs.Read(is);
return is;
}
</pre>

Directory:Derek Elder/Programs/MultipleInheritance - Revision history

Derek Elder: MultipleInheritance program