NILAI KE HURUF

#include <cstdlib>

#include <iostream>

using namespace std;

class Nilai{

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

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

public:

Nilai(){};

void konversikan(){

if((nilai>0)&&(nilai<=20))

nilai_huruf='E';

else if((nilai > 20)&&(nilai<=40))

nilai_huruf='D';

else if((nilai > 40)&&(nilai<=60))

nilai_huruf='C';

else if((nilai>60)&&(nilai<=80))

nilai_huruf='B';

else nilai_huruf='A';

}

private:

int nilai;

char nilai_huruf;

};

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

cout<<"MASUKKAN NILAI = ";

in>>masukan.nilai;

return in;

};

ostream& operator<<(ostream& out,Nilai&keluaran){

out<<"NILAI HURUF = "<<keluaran.nilai_huruf;

return out;

};

int main()

{

Nilai angka;

cin>>angka;

angka.konversikan();

cout<<angka;

system("PAUSE");

return EXIT_SUCCESS;

}