6.1

Program mencari nilai rata-rata

1. Program c++

#include <iostream>
/* run this program using the console pauser or add your own getch, system("pause") or input loop */
using namespace std;
class HitungRata{
      friend ostream& operator<<(ostream&, HitungRata&);
      friend istream& operator>>(istream&, HitungRata&);
public:
       float rata();
private:
        int n;
        int A[20];
        };
        istream& operator>>(istream& in,HitungRata& a){
                 cout<<"Banyaknya data : ";
                 in>>a.n;
                 for(int i=0;i<a.n;i++){
                         cout<<"Masukkan data ke-: "<<i+1<<">";
                 in>>a.A[i];
                 }
        return in;
        }
float HitungRata::rata(){
      float total=0;
      for(int i=0;i<n;i++)total=total+A[i];
      return(total/n);
      }
      
      ostream& operator<<(ostream& out,HitungRata& a){
               out<<"Rata-rata dari "<<a.n<<" bilangan adalah : "<<a.rata()<<endl;
      return out;
      }
      

main()
{
      HitungRata run;
      cin>>run;
      cout<<run;
    return 0
 ;
}

Raptor :