Answer to Question #173926 in C++ for Vimal D

Question

The postage for ordinary post is Rs. 2.00 for the first 15 grams and Rs. 1.00 for each additional 10 grams. Write a C++ program to calculate the charge of postage for a post weighting N grams. Read the weights of N packets and display the total amount of postage using multiple inheritance.

* Base class-1: Member variables are name, source and destination.

* Base class-2: Member variables are no. of packets and weight.

* Derived class: Member functions display(), displays the name, source, destination, total weight and total amount.

Answer 1

#include <iostream>
#include <string>
using namespace std;
 
class Base1
{
public:
	Base1(string n, string s, string d);
protected:
	string name;
	string source;
	string destination;
};
 
Base1::Base1(string n, string s, string d) : name(n), source(s), destination(d)
{}
 
class Base2
{
public:
	Base2(int num, int w);
protected:
	int number;
	int weight;
};
 
Base2::Base2(int num, int w) : number(num), weight(w)
{}
 
class Derived : public Base1, public Base2
{
public:
	Derived(string n, string s, string d, int num, int w);
	void Display();
private:
	double TotalAmount();
};
 
Derived::Derived(string n, string s, string d, int num, int w) : Base1(n, s, d), Base2(num, w)
{}
 
double Derived::TotalAmount()
{
	if (weight <= 15) return 2;
	else
	{
		double temp = weight;
		temp -= 15;
		int multi;
		if ((int)temp / 10 == temp / 10)
		{
			multi = (temp / 10);
		}
		else
		{
			multi = (temp / 10 + 1);
		}
		return 2 + multi;
	}
}
 
void Derived::Display()
{
	cout << "Name is : " << name << endl;
	cout << "Source is " << source << endl;
	cout << "Destination is: " << destination << endl;
	cout << "Total weight is: " << weight << endl;
	cout << "Total amount is: " << TotalAmount() << endl;
}
 
int main()
{
	string name, source, destination;
	int weight, number;
	cout << "Enter name: ";
	cin >> name;
	cout << "Enter source: ";
	cin >> source;
	cout << "Enter destination: ";
	cin >> destination;
	cout << "Enter number post: ";
	cin >> number;
	cout << "Enter weight: ";
	cin >> weight;
	cout << endl;
 
	Derived Book(name, source, destination, number, weight);
	Book.Display();
	cout << endl;
 
	return 0;
}