Answer to Question #174167 in C++ for V.Karthickraja

Question

Design a class TBills to include customer_id, customer_name, phone number, calls and usagecost and also include the following member functions

-getCustomerData()- To input customer data(customer_id, customer_name, phone number,calls)

-usage_cost() - to calculate the monthly telephone bills and calculate the usage cost of telephone bill as per the following rule:

• Minimum Rs. 200 for upto 100 calls.

• Plus Rs. 0.60 per call for next 50 calls.

• Plus Rs. 0.50 per call for next 50 calls.

• Plus Rs. 0.40 per call for any call beyond 200 calls.

Answer 1

#include <iostream>
#include <string>
using namespace std;


class TBills
{
private:
	int customer_id;
	string customer_name;
	string phone_number;
	int calls;


public:
	void getCustomerData(int id, string name, string number,int calls){
		this->customer_id=id;
		this->customer_name=name;
		this->phone_number=number;
		this->calls=calls;
	}
	double usage_cost(){
		int number_calls=calls;
		if (number_calls <= 100)
		{
			return 200;
		}
		else if (number_calls > 100 && number_calls <= 150)
		{
			number_calls = number_calls - 100;
			return 200+(0.60 *number_calls);
		}
		else if (number_calls > 150 && number_calls <= 200)
		{
			number_calls = number_calls - 150;
			return 200+(0.60 *50) + (0.50 *number_calls);
		}
		else
		{
			number_calls = number_calls - 200;
			return 200 + (0.60 * 50) + (0.50 * 50) + (0.40 * number_calls);
		}
	}
	void printTBill(){
		cout << "The customer ID is: " << customer_id << endl;
		cout << "The customer name is: " << customer_name << endl;
		cout << "The customer phone number is: " << phone_number << endl;
		cout << "The customer calls is: " << calls << endl;
		cout << "The customer payment is: " << usage_cost() << endl<< endl;
	}
};




int main (){
	TBills TBillsPeter;
	TBillsPeter.getCustomerData(1,"Peter","055625369",50);
	TBillsPeter.printTBill();


	TBills TBillsMike;
	TBillsMike.getCustomerData(2,"Mike","044856985",150);
	TBillsMike.printTBill();


	TBills TBillsMary;
	TBillsMary.getCustomerData(3,"Mary","0451316113",350);
	TBillsMary.printTBill();


	system("pause");
	return 0;
}