Program Mencari Total Dari 1-n #include <iostream.h>

#include <conio.h>

class total

{

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

friend ostream & operator<< ( ostream &, total& );

public:

total();

void tambah(){jumlah = 0;

for (i = 1; i<=n; i++)

jumlah += i;

}

private:

int n,i,jumlah;

};

total::total()

{cout<<"PROGRAM MENCARI TOTAL DARI 1 - N"<<endl;

};

istream & operator >> ( istream & in, total & msuk )

{

cout << "masukkan bilangan  : " ;

in >> msuk.n;

return in;

}

ostream & operator<< ( ostream &out, total& keluar)

{

out<<"hasilnya totalnya = "<<keluar.jumlah<<endl;

return out;

}

main()

{

total hu;

cin >> hu;

hu.tambah();

cout<<hu;

getch();

return 0;

}