Thread: Hi im new in need of help!

Hi everyone! Im new at his forum and I need some help with this assignmnent I have! Just so you have an idea, I am NOT a computer science major...and I have no idea of what Im doing so help is appreciated!

My assignment is the "Diamond" assignment and I already have the code done! but one last thing i have to do... to write a class. To be more specific.. ''
Write a class called Diamond. Have the appropriate data members for that class. Also have a constructor and a function to output the diamond."

This is my code in .cpp

Code:

 
#pragma once 

class Diamond
{
public:
	Diamond(void);	
	~Diamond(void);
};

#include "stdafx.h"
#include<iostream>
using namespace std;

int main(){
int n,i,j; //integer
char symbol; //character
cout<<"Enter the character, and length: ";
cin>>symbol;

cin>>n;
if(n %2 ==0 || n<0 || n >21) // indicates the number has to be even, greater than 0 and less than 21
{
     do{
            cout<<"You have entered an illegal value for the length.  It must be between 1 and 21.";
            cin>>n;
            }
	 while(n %2 ==0 || n<0 || n >21); // the do will run if this condition is followed
 }
 for(i=0;i<n/2;i++) // range for the loop
	                  // number of rows divided by 2 and increased by 1
 {
  for(j=n/2-i;j>=0;j--)
  cout<<" "; // output blank space
  cout<<symbol; // output character intered
  for(j=1;j<=2*i;j++)
  cout<<" ";
  if(i>0)
  cout<<symbol;
  cout<<endl;
 }
 for(i=n/2;i>=0;i--)
 {
  for(j=n/2-i;j>=0;j--)
  cout<<" ";
  cout<<symbol;
  for(j=1;j<=2*i;j++)
  cout<<" ";
  if(i>0)
  cout<<symbol;
  cout<<endl;
 }

system("pause");
}

I suck at classes.... any idea on how to do it?
Thank you!

You must not use "using namespace std" in header files.

ok this is whay i have so far and thank you guys for the help. this is the ONLY error i get

.h - header file

Code:

#pragma once

#include <iostream>

using std::endl;
using std::cout; 

class Diamond5
{
private:  int lengthN;
		  int lengthI;
		  int lengthJ;
	      char symbol;
public:
	Diamond5(void);
	int getLengthN ();
	int getLengthI ();
	int getLengthJ ();
	char getSymbol ();
	~Diamond5(void);
public: Diamond5 (int, char);
public: void printInfo ();
		void setLengthN (int);
		void setLengthI (int);
		void setLengthJ (int);
		void setSymbol (char);
}; // end of class definition

and this is the .ccp (not main)

Code:

#include "StdAfx.h"
#include "Diamond5.h"

Diamond5::Diamond5(int n, int i, int j, char s) // constructor that initializes the values of the data members
{
	lengthN = n;
	lengthI = i;
    lengthJ = j;
	symbol = s;
}
void Diamond5::printInfo(){
	cout << "Enter the character and lenght: " << symbol << endl;
	cout << "You have entered an illegal value for the length.  It must be between 1 and 21." << lengthN << endl;
}
Diamond5::~Diamond5(void)
{
}

Diamond5::Diamond5(void)
{

}
void Diamond5::setLengthN (int n)
{
	lengthN = n;
}
void Diamond5::setLengthI (int i)
{
	lengthI = i;
}
void Diamond5::setLengthJ (int j)
{
	lengthJ = j;
}
void Diamond5::setSymbol (char s)
{
	symbol = s;
}
int Diamond5::getLengthN(){
	return lengthN;
}
int Diamond5::getLengthI(){
	return lengthI;
}
int Diamond5::getLengthJ(){
	return lengthJ;
}
char Diamond5::getSymbol(){
	return symbol;
};

THE ERROR IS : error C2511: 'Diamond5:iamond5(int,int,int,char)' : overloaded member function not found in 'Diamond5'

THANK U SO MUCH!
[code]

Sort out your indentation, from a cursory glance it seems you have two different definitions for your constructor.., well you dont have two, you have one, and a call that requires a different definition that does not exist hence the message