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Help With Classes

cozier (28)
I was given a shell program and the only instructions given were to write the 13 functions. I am having a hard time trying to figure out where to even start with this. Any help would be appreciated.


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#include <iostream>
using namespace::std;

class Coins
{
public:
// Constructors
Coins(void);
Coins(int q, int d, int n, int p);

// Mutator Functions
void setPennies(int) ;
void setNickels(int);
void setDimes(int);
void setQuarters(int);

// Accessor Functions
int getPennies(void);
int getNickels(void);
int getDimes(void);
int getQuarters(void);

// Other Functions
void advanceOnePenny();
//  increase the pennies amount by 1
//      NOTE:  you may have to advance the nickels
//             you may have to advance the dimes
//             you may have to advance the quarters
//  in other words, minimize the number of coins

void output(ostream &);
void zeroOut(void); //set quarters, dimes, nickels & pennies to 0

private:
int quarters;
int dimes;
int nickels;
int pennies;
};

void main()
{
Coins stackOfChange(0, 1, 1, 3);

for( int i = 1; i <= 33; i++)
{
stackOfChange.advanceOnePenny();
stackOfChange.output(cout);
}

stackOfChange.zeroOut();
stackOfChange.output(cout);

stackOfChange.setQuarters(3);
stackOfChange.setDimes(1);
stackOfChange.setNickels(1);
stackOfChange.setPennies(2);

cout << stackOfChange.getQuarters()  << ' ' 
<< stackOfChange.getDimes()     << ' '
<< stackOfChange.getNickels()   << ' '
<< stackOfChange.getPennies() << endl;

return;
}
//////////////////////////////////////////////////////////////////////////////

/////////////////////////////////////////////////////////////////////////////
// WRITE THE coins FUNCTIONS BELOW

// Constructors //    These two I don't know what functions would be written for them?
Coins::Coins(void)   
{
}
Coins::Coins(int q, int d, int n, int p)
{
}

// Mutator Functions
void Coins::setPennies(int p)
{
}
void Coins::setNickels(int n)
{
}
void Coins::setDimes(int d)
{
}
void Coins::setQuarters(int q)
{
}

// Accessor Functions
int Coins::getPennies(void)
{
}
int Coins::getNickels(void)
{
}
int Coins::getDimes(void)
{
}
int Coins::getQuarters(void)
{
}

// Other Functions
void Coins::advanceOnePenny()
{
}
//  increase the pennies amount by 1
//      NOTE:  you may have to advance the nickels
//             you may have to advance the dimes
//             you may have to advance the quarters
//  in other words, minimize the number of coins

void Coins::output(ostream &)
{
}
void Coins::zeroOut(void) //set quarters, dimes, nickels & pennies to 0
{
}
lolnyancats (20)
Are you trying to find out the value of the functions?
helios (17574)
Seems rather straightforward. Could you be a little more specific?
cozier (28)
I am sure its extremely straight forward. For starters, lines 72-77 I am not sure what I am suppose to be calling with the constructor functions?
helios (17574)
Contructors are used to initialize class members.

Coins::Coins(int, int, int, int) takes four parameters, each named with the initial of a member of Coins. Which member should be initialized to which parameter?

Coins::Coins() takes no parameters. What should the members be initialized to?
cozier (28)
Initialized to 0?
cozier (28)
This is what I have added, I can't figure out how/what to put in the output. 
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#include <iostream>
using namespace::std;

class Coins
{
public:
// Constructors
Coins(void);
Coins(int q, int d, int n, int p);

// Mutator Functions
void setPennies(int) ;
void setNickels(int);
void setDimes(int);
void setQuarters(int);

// Accessor Functions
int getPennies(void);
int getNickels(void);
int getDimes(void);
int getQuarters(void);

// Other Functions
void advanceOnePenny();
//  increase the pennies amount by 1
//      NOTE:  you may have to advance the nickels
//             you may have to advance the dimes
//             you may have to advance the quarters
//  in other words, minimize the number of coins

void output(ostream &);
void zeroOut(void); //set quarters, dimes, nickels & pennies to 0

private:
int quarters;
int dimes;
int nickels;
int pennies;
};

void main()
{
Coins stackOfChange(0, 1, 1, 3);

for( int i = 1; i <= 33; i++)
{
stackOfChange.advanceOnePenny();
stackOfChange.output(cout);
}

stackOfChange.zeroOut();
stackOfChange.output(cout);

stackOfChange.setQuarters(3);
stackOfChange.setDimes(1);
stackOfChange.setNickels(1);
stackOfChange.setPennies(2);

cout << stackOfChange.getQuarters()  << ' ' 
<< stackOfChange.getDimes()     << ' '
<< stackOfChange.getNickels()   << ' '
<< stackOfChange.getPennies() << endl;

return;
}
//////////////////////////////////////////////////////////////////////////////

/////////////////////////////////////////////////////////////////////////////
// WRITE THE coins FUNCTIONS BELOW

// Constructors
Coins::Coins(void)
{
}
Coins::Coins(int q, int d, int n, int p)
{
}

// Mutator Functions
void Coins::setPennies(int p)
{
	if (p >=0)
	{
		pennies = p;
	}
}
void Coins::setNickels(int n)
{
	if (n >=0)
	{
		nickels = n;
	}
}
void Coins::setDimes(int d)
{
	if (d >=0)
	{
		dimes = d;
	}
}
void Coins::setQuarters(int q)
{
	if (q >= 0)
	{
		quarters = q;
	}
}

// Accessor Functions
int Coins::getPennies(void)
{
	return pennies;
	
}
int Coins::getNickels(void)
{
	return nickels;
}
int Coins::getDimes(void)
{
	return dimes;
}
int Coins::getQuarters(void)
{
	return quarters;
}

// Other Functions
void Coins::advanceOnePenny()
{
pennies++;
	//getting the total amount into pennies then translating to n d and q.
pennies = pennies;
pennies = pennies + (nickels * 5);
pennies = pennies + (dimes * 10);
pennies = pennies + (quarters * 25);

quarters = pennies / 25;
pennies = pennies - (quarters * 25);
dimes = pennies / 10;
pennies = pennies - (dimes * 10);
nickels = pennies / 5;
pennies = pennies - (nickels * 5);


	
}
//  increase the pennies amount by 1
//      NOTE:  you may have to advance the nickels
//             you may have to advance the dimes
//             you may have to advance the quarters
//			in other words, minimize the number of coins

void Coins::output(ostream & )
{
	
}
void Coins::zeroOut(void) //set quarters, dimes, nickels & pennies to 0
{
	pennies = 0;
	nickels = 0;
	dimes = 0;
	quarters = 0;

}
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