Answer to Question #179179 in C++ for Ajith

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;

// Base class-1
class Base1 {
   public:
   // parameterized constructor
    Base1(string name, string source, string destination) {
        Name = name;
        Source = source;
        Destination = destination;    
}
   protected:
       string Name;
       string Source;
       string Destination;
};
// Base class-2  
class Base2 {
   public:
   // parameterized constructor
    Base2(int number, int weight){
       Number = number;
       Weight = weight;
}
   protected:
       int Number;
       int Weight;
};
//Multiple Inheritance
class Derived : public Base1, public Base2 {
   public:
       Derived(string name, string source, string destination, int number, int weight)
        : Base1(name, source, destination), Base2(number, weight) {
}
       void Display(){
          cout<<"\nPostage information:"<<endl;
          cout<<"______________________"<<endl;
          cout << "Name:   " << Name << endl;
          cout << "Source: " << Source << endl;
          cout << "Destinations: " << Destination << endl;
          cout << "Total weights: " << Weight << endl;
          cout << "Total amounts: " << totalAmount() << endl;
}
   private:
       double totalAmount(){
          double weight;
          int number;
          if (Weight <= 15)
              return 2;
          else     {
              weight = Weight-15;
              if ((int)weight/10 == weight/10)
                 number = (weight/10);
              else
                 number = (weight/10 + 1);
             return 2 + number;
        }
   }
};

int main() {
 
    Derived postage01  ("Leo", "London", "Paris", 785, 100);
    postage01.Display();
    
    Derived postage02  ("Alex", "Poma", "Mexiko", 154, 10);
    postage02.Display();    
    cout << endl;
 
    return 0;
}