Catatan Minggu 5

Tipe data abstrak Array1D
1. Instan
- Sekumpulan data dengan tipe sama
- diakses via indeks

2. Operasi
- Buat objectnya
- Masukan data
- Mencetak data
- Geser kiri element, array

Syntax

# include <iostream.h>
# define maks 5
class Array1D {
friend ostream& operator<<(ostream&, const Array1D&);
friend istream& operator>>(istream&, Array1D&);
public :
Array1D();
void cetak();
void geser_kiri();
void geser_kanan();
private :
char A[maks];
};
//Konstruktor Array1D
Array1D::Array1D(){
for (int i=0; i<maks; i++)
A[i] = '0';
}
//Mencetak Array
void Array1D::cetak()
{
for (int i=0; i<maks; i++)
cout << A[i] << " ";
}
ostream& operator<<(ostream& out, const Array1D& x)
{
for (int i=0; i<maks; i++)
cout << x.A[i] << " ";
cout << endl;
return out; }

//Operator overloading
is tream& operator>>(istream& in, Array1D& x)
{ int posisi;
cout << "Mengisi array pada posisi ke : ";
in >> posisi;
if (posisi > 0 && posisi <= maks) {
cout << "Masukkan elemen array-nya : ";
in >> x.A[posisi-1]; }
else
cout << "Anda memasukkan posisi di luar range ... ";
return in;  }
void Array1D::geser_kanan(){
int n = maks;
int temp = A[n-1];
f or (int i=n-1; i >= 0; i--)
A[i+1] = A[i];
A [0] = temp;
}

void Array1D::geser_kiri(){
int n = maks;
int temp = A[0];
for (int i=0; i < n; i++)
A[i] = A[i+1];
A[n-1] = temp; }

main() {
Array1D x;
cout << "Array masih kosong : " << x;
cin >> x;
cout << "Isi Array saat ini : " << x;
x.geser_kiri();
cout << "Isi Array setelah digeser ke kiri : " << x;
x.geser_kanan();
cout << "Isi Array setelah digeser ke kanan : " << x;
return 0;
}