Praktikum 3

BILANGAN.H

class Bilangan{

friend ostream& operator<<(ostream&, const Bilangan&);

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

public :

Bilangan(int aO=0, float bO=0.0):a(aO),b(bO){}

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)

{

a=x.a;

b=x.b;

return *this;

}

istream& operator>>(istream& in, Bilangan& x)

{

cout<<”\nMasukkan bagian integer : “;

in>>x.a;

cout<<”Masukkan bagian float : “;

in>>x.b;

return in;

}

Bilangan Bilangan::operator+(const Bilangan& x) const

{ Bilangan cc;

cc.a=a+x.a;

cc.b=b+x.b;

return cc;

}

Bilangan Bilangan::operator-()const

{

 Bilangan x;

x.a=-a;

x.b=-b;

return x;

}

BILCHAR.H

#include “bilangan.h”

class Bil_char : public Bilangan{

friend ostream& operator<<(ostream&, const Bil_char&);

public :

Bil_char(int aO=0, int bO=0, char ch=’x'):Bilangan(aO,bO),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;

}

class Bil_float : public Bilangan{

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

friend ostream& operator<<(ostream&, const Bil_float&);

public :

Bil_float(int aO=0, int bO=0, float d0=0, char ch=’x'):Bilangan(aO,bO),c(ch){}

private :

char c;

float d;

};

ostream& operator<<(ostream& out, const Bil_float& x)

{

out<<”Bagian Integer : “<<x.a<<endl;

out<<”Bagian float : “<<x.b<<endl;

out<<”Bagian char : “<<x.c<<endl;

out<<”Bagian float : “<<x.d<<endl;

return out;

}

istream& operator>>(istream& in, Bil_float&x){

cout<<”Masukkan bilangan integer : “; in>>x.a;

cout<<”Masukkan bilangan float : “; in>>x.b;

cout<<”Masukkan bilangan char : “; in>>x.c;

cout<<”Masukkan bilangan float : “; in>>x.d;

return in;

}

Turunan.CPP

#include<iostream.h>

#include”bilchar.h”

int main(int argc, char *argv[])

{

Bilangan s, t(-2,3.14), d;

cout<<”Nilai awal s\n”<<s;

cout<<”Nilai awal t dari deklarasi\n”<<t;

s=t;

cout<<”Setelah s di-assign t\n”;

cout<<”Nilai s\n”<<s;

cout<<”Masukkan nilai-nilai objek d”;

cin>>d;

cout<<”Setelah d + t=>\n”<<d+t;

cout<<”Nilai d dinegatifkan\n”<<-d;

Bil_char ss;

cout<<”Nilai awal ss\n”<<ss;

system(“PAUSE”);

return EXIT_SUCCESS;

}