Program to illustrate multiple inheritance

 #include<iostream.h>
 #include<stdio.h>
 #include<conio.h>


 //------------------------------  item  ---------------------------------//


 class item
    {
       private:
        char part_name[20];
        float part_price;

       public:
        void get_data();
        void show_data();
    };


 //------------------------------  sales  --------------------------------//


 class sales
    {
       private:
        float sales_fig[3];

       public:
        void get_data();
        void show_data();
    };


 //---------------------------  hardware_item  ---------------------------//


 class hardware_item:public item,public sales
    {
       private:
        char category[10];
        char manufacturers[10];

       public:
        void get_data();
        void show_data();
    };


 //--------------------------  software_item  ----------------------------//


 class software_item:public item,public sales
    {
       private:
        char category[10];
        char operating_system[10];

       public:
        void get_data();
        void show_data();
    };



 //----------------------------  get_data( )  ----------------------------//


 void item::get_data()
    {
       cout<<\"\\t Enter part name = \";
       gets(part_name);

       cout<<\"\\t Enter part price = \";
       cin>>part_price;
    }


 //----------------------------  show_data( )  ---------------------------//


 void item::show_data()
    {
       cout<<\"\\t Part name = \"<<part_name<<endl;
       cout<<\"\\t Part price = \"<<part_price<<endl;
    }



 //----------------------------  get_data( )  ----------------------------//


 void sales::get_data()
    {
       cout<<\"\\n Enter the Sales figures for three months : \"<<endl;

       for(int count=0;count<3;count++)
      {
         cout<<\"\\t Sales for month  \"<<count+1<<\" = \";
         cin>>sales_fig[count];
      }
    }


 //----------------------------  show_data( )  ---------------------------//


 void sales::show_data()
    {
       cout<<\"\\n Sales figures for three months : \"<<endl;

       for(int count=0;count<3;count++)
       cout<<\"\\t Sales for month  \"<<count+1<<\" = \"<<sales_fig[count]<<endl;
    }



 //----------------------------  get_data( )  ----------------------------//


 void hardware_item::get_data()
    {
       item::get_data();

       cout<<\"\\t Enter the category = \";
       gets(category);

       cout<<\"\\t Enter the manufacturers = \";
       gets(manufacturers);

       sales::get_data();
    }


 //----------------------------  show_data( )  ---------------------------//


 void hardware_item::show_data()
    {
       item::show_data();

       cout<<\"\\t Category = \"<<category<<endl;
       cout<<\"\\t Manufacturers = \"<<manufacturers<<endl;

       sales::show_data();
    }



 //----------------------------  get_data( )  ----------------------------//


 void software_item::get_data()
    {
       item::get_data();

       cout<<\"\\t Enter the category = \";
       gets(category);

       cout<<\"\\t Enter the operating system = \";
       gets(operating_system);

       sales::get_data();
    }


 //----------------------------  show_data( )  ---------------------------//


 void software_item::show_data()
    {
       item::show_data();

       cout<<\"\\t Category = \"<<category<<endl;
       cout<<\"\\t Operating system = \"<<operating_system<<endl;

       sales::show_data();
    }

 main()
    {
       clrscr();

       hardware_item h;
       software_item s;

       cout<<\"\\n ********* Hardware Item ********\"<<endl;
       h.get_data();

       cout<<\"\\n ********* Software Item ********\"<<endl;
       s.get_data();

       getch();
       clrscr();

       cout<<\"\\n ********* Hardware Item ********\"<<endl;
       h.show_data();

       cout<<\"\\n ********* Software Item ********\"<<endl;
       s.show_data();

       getch();
       return 0;
    }