How to create class

[muham2k]

Hi experts! Can some one help in explaining the step i can take to create class name "Parking" in a parking ticket calculating system, with member function that will compute the total hours charge after spending 3. the parking rate is $1.50 for the 1st hour and $1.20 for every subsequent hour.

[ultifinitus]

Step # 1: make a class.

 class parkingCalc{
 protected:
 float rate;
 float firstHour;
 public:
 void set_rate(float set);
 void set_firstHour(float set);
 void get_total(int hours);
 };

[muham2k]

thanks alot.
kindly can you explain it a little further.
What i understood from the above is:
line 1: created class type "parkingCalc"
line 2-4: declares 2 member data with access specifier - private - of type - float
line 6-8: declares 3 member functions with access specifier - public - of type - void(what is
meaning of void here)
How can i use these parameters in the main function.

I really appreciate your input.

[Galik]

It might be useful to read through this: http://cplusplus.com/doc/tutorial/classes/

[muham2k]

Thanks. i have read the section for classes, but could not make any meaning out of it. May be because i am new to C++.
I will really appreciate your input on the above.

[Father Sloth]

By void he means the function will not return anything as it is .... Void. You can also have void as an argument parameter such as:
int displayTotal (void);
In this example it would return an integer (that being the total parking ticket) but would require no additional information as an argument ... thus again being void.

I like to think of it as a machine demonstrated in this amazing piece of artwork I did for you:
http://i1105.photobucket.com/albums/h349/Father_Sloth/Functiondiagram.png

Hope this helps :)

- Simon

*edit: link fixed

[ascii]

try something like this:

#include <iostream>
#include <string>
#include <sstream>

using namespace std;

class calculate
{
	double hours;
	double total;
public:
	calculate(int);
	void findTotal();
};

calculate::calculate(int data)
{
	total = 1.5;
	hours = data - 1;
}

void calculate::findTotal(void)
{
	while (hours > 0)
	{
		total += 1.2;
		hours--;
	}
	cout << "You owe: $" << total << endl;
}

int main()
{
	string entered;
	int length;
	
	cout << "How many hours were you parked: ";
	cin >> entered;
	stringstream(entered) >> length;
	
	calculate total(length);
	total.findTotal();
	
	system("pause");

	return 0;	
}

[Codefreak101]

@father sloth
AMAZING ARTWORK xD musta' takin days! xD as far as the classes go I think I'm a little late to help out.