p1

// aSSIGNMENT OOP  P1
// OVERLOADING FUNCTIONS;
#include<iostream>
using namespace std;
class area
{

    public:

    void draw(double l,double h)//area of rectangle
    {
        cout<<"\nRECTANGLE=======================";
        double ans;
        ans=l*h;
        cout<<"\n Area of rectangle => "<<ans;
    }
    void draw(double r)//area of circle
    {
        double ans;

        ans=r*r*3.14;
        cout<<"\n Area of circle => "<<ans;
    }


    void draw(double h, float b)//area of triangle
    {
        float ans;
        ans=(b*h)/2;
        cout<<"\n Area of triangle => "<<ans;
    }

};
int main()
{
    area a1;
    int ch;
    double h1,r,l,h;
    float b;
    do
    {

        cout<<"\n Menu of area";
        cout<<"\n 1.rectangle";
        cout<<"\n 2.circle";
        cout<<"\n 3.triangle";
        cout<<"\n 4.Exit(*L*)";
        cout<<"\n Enter your choice: ";
        cin>>ch;
        switch(ch)
        {
            case 1:

                cout<<"\n\t\t===== Rectangle =====";
                cout<<endl<<"Enter the height : ";
                cin>>h1;
                cout<<endl<<"Enter the Length : ";
                cin>>l;
                a1.draw(l,h1);

            break;

            case 2:
                cout<<"\n\t\t===== Circle  =======";
                cout<<endl<<"Enter the rediuse : ";
                cin>>r;
                a1.draw(r);

            break;

            case 3:
                cout<<"\n\t\t===== Triangle ======";
                cout<<endl<<"Enter the height : ";
                cin>>h;
                cout<<endl<<"Enter the base : ";
                cin>>b;
                a1.draw(h,b);
            break;
        }
    }while(ch>=1 && ch<=3);

    return 0;
}