Praktikum Struktur Data 3

NUR KAHFI IBRAHIM
09018238

POSTEST

Header File

#include <iostream>

using namespace std;

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_float(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;

}

class Bil_float:public Bilangan{

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

public:

Bil_float(int a0=0, int b0=0, float ft='3,14'):Bilangan(a0,b0), c(ft){}

private:

float c;

};

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

out<<"Bagian integer:"<<x.a<<endl;

out<<"Bagian float:"<<x.b<<endl;

out<<"Bagian float:"<<x.c<<endl;

return out;

}

Main function

#include <iostream>

using namespace std;

int main(){

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

cout<<"Nilai awal s sebelum deklarasi\n"<<s;

cout<<endl;       //operator biner << output

cout<<"Nilai awal t setelah deklarasi\n"<<t;

s=t;                                //operator biner =

cout<<endl;

cout<<"Setelah s di-assaign t\n";

cout<<"Nilai s\n"<<t;

cout<<endl;

cout<<"Masukkan nilai-nilai objek d";

cin>>d;                     //operator >> input

cout<<endl;

cout<<"Setelah d + t => \n"<<d+t;  //operator biner +

cout<<endl;

cout<<"Nilai d dinegatifkan\n"<<-d;    //operator uner -

Bil_float ss;

cout<<endl;

cout<<"Nilai awal ss\n"<<ss;           //operator biner << output

system ("PAUSE");

return 0;

}

PRETEST

1. class Bil_float:public Bilangan{

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

                public:

                                Bil_float(int a0=0, int b0=0, float ft='3,14'):Bilangan(a0,b0), c(ft){}

                private:

                                float c;

                                };

2. Bil_float(int a0=0, int b0=0, float ft='3,14'):Bilangan(a0,b0), c(ft){}

3. ostream& operator<<(ostream& out, const Bil_float& x){

         out<<"Bagian integer:"<<x.a<<endl;

         out<<"Bagian float:"<<x.b<<endl;

         out<<"Bagian float:"<<x.c<<endl;

         return out;

         }

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

         cout<<"\nMasukkan bagian integer:";

         in>>x.a;

         cout<<"Masukkan bagian float:";

         in>>x.b;

         return in;

         }

4. void Bilangan::banding_float(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";

     }