//main.cpp


#include<iostream>
#include "tips.h"

using namespace std;

int main()
{
	long double Tax1,
		   Bill1,
		   Grat1;
		int choice;
		choice = 0;
		Tips Ti;
do
{
cout <<"Enter the following to calculate your total bill"<<endl;
cout << endl;

Tax1 = 0.065;
cout << "Tax Rate is "<< Tax1<<endl;
Ti.setTaxRate(Tax1);

cout << endl;
cout << "Enter your bill amount.  "<<endl;
cin   >>  Bill1;
Ti.setBill(Bill1);

cout <<endl;

cout << "Enter the Gratuity Rate You'd like to use (in decimal form)" <<endl;
cin >> Grat1;
cout << endl;

Ti.setGratuity(Grat1);
Ti.computeTip();

cout << "Would you like to calculate again? (Type 1 to repeat or 4 to quit) ";
cin  >> choice;
cout << endl;
cout << "-------------------------------------------------------"<<endl;
cout << endl;
}while(choice != 4);

}









//Tips.cpp


#include "Tips.h"
#include<iostream>
#include<iomanip>
#include<cstdlib>
using namespace std;

void Tips::setTaxRate(double t)
{taxRate = t;if(taxRate == 0)taxRate = 0.65;}
void Tips::setBill(double b)
{bill = b;if(bill<=0) {cout<<"Error! Your bill cannont be zero or less."<<endl; exit(0);}}
void Tips::setGratuity(double g)
{gratuity = g;if(gratuity<=0) {cout<<"Error! Your gratuity cannont be zero or less."<<endl; exit(0);}}

void Tips::computeTip()
{
double output;

output = ((taxRate * bill) + (bill) + (bill * gratuity));

cout << "You've entered: "<<endl;
cout << endl;
cout << fixed << showpoint << setprecision(2) << taxRate << endl;
cout << fixed << showpoint << setprecision(2) << bill << endl;
cout << fixed << showpoint << setprecision(2) << gratuity << endl;
cout << "Your total bill is $ "<< fixed << showpoint << setprecision(2) << output <<endl;
cout << endl;
}







//Tips.h

#include<iostream>
#ifndef Tips_H
#define Tips_H
using namespace std;

class Tips
{
private:
	double taxRate,
		   bill,
		   gratuity;

	public:
	Tips()
	{
		taxRate = 0;
		bill = 0;
		gratuity = 0;
	}

	void setTaxRate(double t);
	void setBill(double b);
	void setGratuity(double g);
	void computeTip();

};
#endif