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  1. #include <iostream>
  2. #include <cmath>
  3. using namespace std;
  4. class rectangle{
  5.     public:
  6.     float length, width ;
  7.     void input(){
  8.         cout<<"enter length and width "<<endl;
  9.         cin>>length>>width;
  10.  
  11.     }
  12.     void area(){
  13.         cout<<"area of rectangle="<<length*width<<endl;    }
  14.         void perimeter(){
  15.             cout<<"perimeter="<<2*(length+width)<<endl;
  16.         }
  17.  
  18.     };
  19.     int main(){
  20.       rectangle r;
  21.       r.input();
  22.       r.area();
  23.       r.perimeter();
  24.  
  25.     }
  26.  
Success #stdin #stdout 0.01s 5308KB
comments (?)
stdin 
Standard input is empty
stdout 
enter length and width 
area of rectangle=0
perimeter=3.30988e-31
https://ideone.com/8SYwUF
language:
C++ (gcc 8.3)
created:
22 hours ago
visibility:
public

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