area.cpp

Code for calculating area

#include<iostream.h>
#include<conio.h>
class shape
{
float ar,per;

 public:
     void area(double s)
     {
       ar=s*s;
       per=4*s;
     cout<<"area of square is:"<<ar;
     cout<<"\nperimeter of square is:"<<per;
     }

     void area(float r)
     {
     ar=3.14*r*r;
     per=2*3.14*r;
     cout<<"area of cicle is:\n"<<ar;
     cout<<"\nperimeter of circle is:"<<per;
     }

    void area(float a,float b)
     {
     ar=a*b;
     per=2*(a+b);
     cout<<"Area of rectangle is:\n"<<ar;
     cout<<"\nPerimeter of rectangle is:"<<per;
     }

     void area(int l)
    {
    ar=6*l*l;
    per=l*l*l;
    cout<<"Area of cube is:\n"<<ar;
    cout<<"\nPerimeter of cube is:\t"<<per;
    }
 };

    void main()
    {
    shape x;
    clrscr();
    char ch1;
    double s;
    int l,ch;
    float r,a,b;
    do
    {
    cout<<"1.square"<<endl<<"\n2.circle"<<endl<<" \n3.rectangle"<<endl<<"\n4.cube";
    cout<<"\nenter ur choice";
    cin>>ch;
    switch(ch)
    {
    case 1:
    cout<<"enter side of square";
    cin>>s;
    x.area(s);
    break;

    case 2:
    cout<<"enter radius of circle:";
    cin>>r;
    x.area(r);
    break;

    case 3:
    cout<<"Enter lenght and breadth of rectangle:";
    cin>>l>>b;
    x.area(l,b);
    break;

    case 4:
    cout<<"Enter side of cube:";
    cin>>l;
    x.area(l);
    break;
    }
    cout<<"\ndo u want to cont";
    cin>>ch1;
    }while(ch1=='y');
   getch();
    }