Slip 20 - B) Create a C++ class for inventory of Mobiles with data members Model, Mobile _Company, Color, Price and Quantity. Mobile can be sold, if stock is available, otherwise purchase will be made. Write necessary member functions for the following: i. To accept mobile details from user. ii. To sale a mobile. (Sale contains Mobile details & number of mobiles to be sold.) iii. To Purchase a Mobile. (Purchase contains Mobile details & number of mobiles to be purchased).

Solution:

#include<iostream>

#include<conio.h>

#include<string.h>

using namespace std;

class inventory

{

    int mno;

    char mname[30]; 

    int stock;

    float price; 

    public :

    void accept()

    {

        cout<<"\n Enter model no :"; cin>>mno;

        cout<<"\n Enter model name : "; cin>>mname;

        cout<<"\n enter price : "; cin>>price;

        cout<<"\n Enter stock : "; cin>>stock;

    }

    void display()

    {

        cout<<"\n model no is : "<<mno<<"\n model name : "<<mname<<"\n price : "<<price<<"\n stock :"<<stock;

    }

    int sale(int no,int q)

    {

        if(mno==no)

        { 

            if(stock>=q)

            {

                stock  =stock-q; 

                cout<<"\n sale is done : "; 

                display();

                return 2;

            }   

            else

            {

                cout<<"\n purchse is requried .";

                //purchase(); 

                return 1;

            }

        }

        /*else

        {

            cout<<"Please enter correct model number\n";

        }*/

  }

    void purchase(int no,int q)

    {

        if(no==mno)

        {

            stock=stock+q;

            cout<<"\n purchase is done..."; 

            display();

        }

    }

};

int main()

{

    inventory in[10];

    int qt,ans,no,i;

    cout<<"\n Enter no of models : "; 

    int n;

    cin>>n;

    for(int i=0;i<n;i++) 

    in[i].accept();

    cout<<"===================================";

    for(i=0;i<n;i++) 

    {

        in[i].display();

    }

    cout<<"\n Enter model number to be purchaes and quantity : "; 

    cin>>no;

    cin>>qt; 

    for(i=0;i<n;i++)

    {

        ans=in[i].sale(no,qt) ;

        if(ans==1)

    {

        cout<<"\n Enter model to be purchaes and quantity : "; 

        cin>>no;

        cin>>qt; 

        for(i=0;i<n;i++)

        {

            in[i].purchase(no,qt);

        }

    }

    }

    return 0;

}