Determine whether the wake is a square or rectangle!

 a.         a Problem Analysis : Input-Process-Output

Case Example	Input	Process	Output
If you want to look up whether a square or rectangular	Enter the length and width	> Formula for area of ​​rectangle = p * l > The formula circumference of a rectangle = 2 * (p + l) > Formula square area = p * l > Circumference formula square = p + p + l + l	Rectangular or square

b.     Program C++

#include <iostream>

#include <string>

using namespace std;

class bangun {

friend istream& operator>>(istream&, bangun&);

public:

void iya_bukan();

private:

int p,l;

              };

istream& operator>>(istream& in, bangun&masukan){

cout<<"Menentukanbangunpersegiataupersegipanjang\n";

cout<<"Masukan p : ";

         in>>masukan.p;

cout<<"Masukan l : ";

         in>>masukan.l;  

         }

void bangun::iya_bukan(){

      if (p==l)

cout<<"MerupakanBangunPersegi"<<endl;

     else

cout<<"MerupakanBangunPersegiPanjang"<<endl;

        }

main()

{

bangun x;

cin>>x;

x.iya_bukan();

   system ("Pause");

   return 0;

c.         Debugging and Testing

Debugging methods / Tested data	Correct / Runtime error / Logical error	Follow-up / Improvement
Masukan contoh panjang=22 dan lebar=22		persegi