Below is my program:
Code:
// Class, Constructor and Destructor
/* Base/Member Initialization - use this method
as often as possible because it allows the compiler
to create variables and objectly correctly instead
of creating them with a default value and to use an
additional assignment to set its value.
*/
#include<iostream>
#include<string>
using namespace std;
using std::string;
class Human
{
string name;
int age;
public:
Human() : name(), age(0){} // Good method Constructors
int setage();
string setname();
~Human(){}; // Inline Destructors
};
int main(int argc, char *argv[])
{
Human nicholas_tse;
for (;;)
{
cout << "My name is " << nicholas_tse.setname() << endl;
cout << "My age is " << nicholas_tse.setage() << endl;
cout << endl;
}
return 0;
}
string Human::setname()
{
Human peter;
cout << "Enter your name : ";
cin >> peter.name;
return peter.name;
}
int Human::setage()
{
Human peter;
cout << "Enter your age : ";
cin >> peter.age;
return peter.age;
}
// Polymorphism is a mechanism where base class object and
// derived class object doing different things.
/* Human
\|/
Baby
Human - Speaking
Baby - Crying
*/
/*Abstract class is that class that only has function*/
// use get and set to facilitate encapsulation or this pointer.
This program run without any errors but the second program has an errors.
Below is the program:
// Class, Constructor and Destructor
/* Base/Member Initialization - use this method
as often as possible because it allows the compiler
to create variables and objectly correctly instead
of creating them with a default value and to use an
additional assignment to set its value.
*/
#include<iostream>
#include<string>
using namespace std;
using std::string;
class Human
{
string name;
int age;
public:
Human() : name(), age(0){} // Good method Constructors
void setname();
string getname();
void setage();
int getage();
~Human(){}; // Inline Destructors
};
int main(int argc, char *argv[])
{
Human nicholas_tse;
for (;;)
{
nicholas_tse.setname();
nicholas_tse.setage();
cout << "My name is " << nicholas_tse.getname() << endl;
cout << "My age is " << nicholas_tse.getage() << endl;
cout << endl;
}
return 0;
}
void Human::setname()
{
Human peter;
cout << "Enter your name : ";
cin >> peter.name;
}
string Human::getname()
{
Human peter;
return peter.name;
}
void Human::setage()
{
Human peter;
cout << "Enter your age : ";
cin >> peter.age;
}
int Human::getage()
{
Human peter;
return peter.age;
}
// Polymorphism is a mechanism where base class object and
// derived class object doing different things.
/* Human
\|/
Baby
Human - Speaking
Baby - Crying
*/
/*Abstract class is that class that only has function*/
// use get and set to facilitate encapsulation or this pointer.
And this is the reference:
#include<iostream>
using std::cout;
using std::endl;
#include "gradebook.h"
int main(int argc, char *argv[])
{
Gradebook gradebook1("Cs101 Introduction to C++ Programming");
Gradebook gradebook2("Cs102 Data Structures in C++");
cout << "Gradebook1 created for course : " << gradebook1.getCourseName() << endl;
cout << "Gradebook2 created for course : " << gradebook2.getCourseName() << endl;
return 0;
}
Gradebook::Gradebook(string name)
{
setCourseName(name);
}
void Gradebook::setCourseName(string name)
{
coursename = name;
}
string Gradebook::getCourseName()
{
return coursename;
}
void Gradebook::displayMessage()
{
cout << "Welcome to the grade book for " << getCourseName() << endl;
}
Please explained to me the flow of the gradebook program. What is the purpose of set and get function ?
Thanks for your help.
Your help is greatly appreciated by me and others.
