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Postest Praktikum III

October 30, 2010

#include <iostream.h>
#include <conio.h>

class Bilangan{
friend ostream& operator<<(ostream&, const Bilangan&);
friend istream& operator>>(istream&, Bilangan&);
public :
Bilangan(int a0=0,float b0=0.0):a(a0),b(b0){}
void banding_int(const Bilangan&, const Bilangan&);
Bilangan& operator=(const Bilangan&);
Bilangan operator+(const Bilangan&)const;
Bilangan operator-()const;
protected :
int a;
float b;

ostream& operator<<(ostream& out, const Bilangan& x){
out<<”Bagian integer :”<<x.a<<endl;
out<<”Bagian float :”<<x.b<<endl;
return out;

void Bilangan::banding_int(const Bilangan& x, const Bilangan& y){
if(x.a>y.a)cout<<x.a<<”::x lebih besar dari”<<y.a<<”::y”;
else cout<<x.a<<”::x lebih kecil dari”<<y.a<<”::y”;

Bilangan& Bilangan::operator=(const Bilangan& x){
return *this;

istream& operator>>(istream& in, Bilangan& x){
cout<<”\nmasukan bagian integer :”;
cout<<”masukan Bagian float “;
return in;

Bilangan Bilangan::operator+(const Bilangan& x)const{
Bilangan cc;
return cc;

Bilangan Bilangan::operator-()const{
Bilangan x;
return x;

class Bil_char:public Bilangan{
friend ostream& operator<<(ostream&, const Bil_char&);
Bil_char(int a0=0,int b0=0, char ch=’x’):Bilangan(a0,b0),c(ch){}
private :
char c;

ostream& operator<<(ostream& out, const Bil_char& x){
out<<”Bagian integer :”<<x.a<<endl;
out<<”Bagian float :”<<x.b<<endl;
out<<”Bagian char :”<<x.c<<endl;
return out;

#include <iostream.h>
void main(){
Bilangan s,t(-2,3.14),d;
cout<<”Nilai awal s\n”<<s;
cout<<”Nilai awal t dari deklarasi\n”<<t;
cout<<”Setelah s di-assign t\n”;
cout<<”Nilai s\n”<<s;
cout<<”Masukan Nilai-nilai objek d”;
cout<<”Setelah d+t => \n”<<d+t;
cout<<”Nilai d dinegatifkan\n”<<-d;
Bil_char ss;
cout<<”Nilai awal ss\n”<<ss;


From → struktur data

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