Array

Pengertian Array

Suatu array adalah sebuah struktur data yang terdiri atas banyak variabel dengan tipe data sama, dimana masing-masing elemen variabel mempunyai nilai indeks. Setiap elemen array mampu untuk menyimpan satu jenis data (yaitu: variabel).

Array adalah struktur data yang terdiri dari item berurutan, di mana semua itemnya bertipe sama.

Contoh Program Array

Coding:

#include <iostream.h>

#include <conio.h>

class Array 

{

   public:

      Array();

      void Array2();

      void cetak();    

   private:

      int n;

      int X[10];    

};

Array::Array() 

{

    n = 10;

    for (int i=0; i<n; i++)

        X[i] = i+1;

}        

void Array::Array2() 

{

    for (int i=0; i<n; i++)

        X[i]--;    

}

void Array::cetak()

{

    for (int i=0; i<n; i++)

        cout << "Nilai Array ke-" << i << " : " << X[i] << endl;

    getch();  

}

int main() {

    Array a;

    cout << "====================================="<<endl;

    cout << "Array awal : " << endl;

    cout << "====================================="<<endl;

    a.cetak();

    a.Array2();

    cout<<endl;

    cout<<endl;

    cout << "====================================="<<endl;

    cout << "Array setelah dikurangi 1 : " << endl;

    cout << "====================================="<<endl;

    a.cetak();

}

Output:

Tugas Dasar-Dasar Pemrograman - Kalkulator Sederhana

Coding:


#include <iostream>

using namespace std;

int main(){

int pilih_operator;
double A, B, hasil;

cout<<"--------------------------------------";
cout<<"\n---------KALKULATOR SEDERHANA---------";
cout<<"\n--------------------------------------";
cout<<"\n        1. Penjumlahan    [+]";
cout<<"\n        2. Pengurangan    [-]";
cout<<"\n        3. Perkalian         [x]";
cout<<"\n        4. Pembagian      [:]";
cout<<endl<<endl;
cout<<"Pilihan Operator (1/2/3/4) = ";
cin>>pilih_operator;

switch(pilih_operator){
case 1: cout<<"\n--PENJUMLAHAN"<<endl;
cout<<"  Masukkan nilai 1: ";
cin>>A;
cout<<"  Masukkan nilai 2: ";
cin>>B;
cout<<"  Hasil = "<<A+B<<endl;
break;

case 2: cout<<"\n--PENGURANGAN"<<endl;
cout<<"  Masukkan nilai 1: ";
cin>>A;
cout<<"  Masukkan nilai 2: ";
cin>>B;
cout<<"  Hasil = "<<A-B<<endl;
break;

case 3: cout<<"\n--PERKALIAN"<<endl;
cout<<"  Masukkan nilai 1: ";
cin>>A;
cout<<"  Masukkan nilai 2: ";
cin>>B;
cout<<"  Hasil = "<<A*B<<endl;
break;

case 4: cout<<"\n--PEMBAGIAN"<<endl;
cout<<"  Masukkan nilai 1: ";
cin>>A;
cout<<"  Masukkan nilai 2: ";
cin>>B;
cout<<"Hasil = "<<A/B<<endl;
break;

defult:
cout<<"\nOops, Anda salah memilih operator!!!";
}

cout<<endl<<endl<<endl;
cout<<"--------------------------------------\n";
system("PAUSE");
return 0;
}

Hasil:

1. Operator Hitung Penjumlahan

2. Operator Hitung Pengurangan

3. Operator Hitung Perkalian

4. Operator Hitung Pembagian

Menampilkan kalimat

Source Code:

#include<iostream.h>

int main()

{

  cout<<"Nama saya adalah Agus Dwi Nuryanto,";

  cout<<" alamat Jl Perintis Kemerdekaan,";

  cout<<" Gg Pisang, no 649";

  return 0;

}

Hasil :

Praktikum 9

#include
#include
#define maks 5

using namespace std;

class Queue{
friend ostream& operator<<(ostream&, const Queue&);
public :
Queue();
int penuh(int);
int kosong(int);
void cetak();
void enqueue();
char dequeue();

private :
char A[maks];
int banyak;
char x;
};

ostream& operator<<(ostream& out, const Queue& s){
cout<<”\nIsi Quueue sebanyak : “<<<” yaitu : “;
for(int i=0;i
out<<<” “;
return out;
}

Queue::Queue(){
banyak=0;
for(int i=0;i
A[i]=’0′;
}
int Queue::penuh(int s){
return s==maks?1:0;
}
int Queue::kosong(int s){
return s==0?1:0;
}

void Queue::cetak(){
cout<<”\nIsi Queue : “;
for(int i=0;i
cout<<<” “; } void Queue::enqueue(){ cin>>x;
cout<<”Elemen :”<<<” masuk antrian”;
if(penuh(banyak))cout<<”queue penuh “; else if(A[0]==’0′){ A[0]=x; banyak++; } else{ int tempat=0; while(A[tempat]>x)tempat++;
if(banyak!=tempat)
for(int i=banyak;i>=tempat;i–)
A[i+1] = A[i];
A[tempat]=x;
banyak++;
}
}

char Queue::dequeue(){
char temp=A[--banyak];
cout<<”\nDequeue elemen –> “<
A[banyak]=’0′;
return temp;
}

int main(int argc, char *argv[])
{
Queue p;
for(int i=1;i<=5;i++){
cout<<”masukan elemen :”;p.enqueue();
cout<
}
cout<

for(int i=1;i<=5;i++){
p.dequeue();cout<
if(i==5) cout<<”\n\n\n element kosong”;
cout<
}
system(“PAUSE”);
return EXIT_SUCCESS;
}

Praktikum 8

#include
#include
#define maks 5

using namespace std;

class Queue{
friend ostream& operator<<(ostream&, const Queue&);
public :
Queue();
int penuh(int);
int kosong(int);
void cetak();
void enqueue(char);
char dequeue();
private :
char A[maks];
int banyak;
};

ostream& operator<<(ostream& out, const Queue& s)
{ cout<<”\nIsi Queue : “;
for(int i=0; i<s.banyak;i++)
out<<s.A[i]<<” “;
}

Queue::Queue(){
banyak=0;
for(int i=0;i<maks-1;i++)
A[i]=’0′;
}

int Queue::penuh(int s)
{return s==maks-1 ? 1:0;}

int Queue::kosong(int s)
{return s==0 ? 1:0;}

void Queue::cetak()
{cout<<”\nIsi Queue : “;
for(int i=0; i<banyak; i++)
cout<<A[i]<<” “;
}

void Queue::enqueue(char x)
{
cout<<”\n\nElemen :”<<x<<” masuk antrian”;
if(penuh(banyak))cout<=0; i–)
A[i+1]=A[i];
A[0]=x;
banyak++;
}
}

char Queue::dequeue()
{
char temp=A[--banyak];
cout< “<<temp;
A[banyak]=’0′;
return temp;
}

int main(int argc, char *argv[])
{
Queue q;
char c;

for(char c=’A'; c<’E'; c++){
q.enqueue(c);
cout<<q;
}

for(char c=’E'; c<’F'; c++){
q.enqueue(c);
cout<<q;
}

char p=q.dequeue();
q.cetak();

for(char c=’E'; c<=’E'; c++){
q.enqueue(c);
cout<<q;
}

cout<<”\n\nCetak pakai everloading : “<<q;
system(“PAUSE”);
return EXIT_SUCCESS;
}

Praktikum 7

#include
#define maks 6

using namespace std;

class Stack{

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

public:
Stack();
int penuh(int);
int kosong(int);
void cetak();
void push(char);
char pop();
private:
char A[maks];
int banyak;
};

ostream& operator<<(ostream& out, const Stack& s)
{
cout << "\nIsi stack : ";
for (int i=0;i< s.banyak;i++)
out << s.A[i] << " " ;
}

Stack::Stack(){
banyak = 0;
for (int i=0; i<maks; i++)
A[i] = '0';
}

int Stack::penuh(int s)
{
return s == maks ? 1 : 0;
}

int Stack::kosong(int s)
{
return s == 0 ? 1 : 0;
}

void Stack::cetak()
{
cout << "\nIsi stack :";
for (int i=0;i< banyak;i++)
cout << A[i] <<" ";
}

void Stack::push(char x)
{
cout << "\nElemen masuk :" << x;
if (penuh(banyak)) cout <=0;i–)
A[i+1]=A[i];
A[0]=x;
banyak++;}
}

char Stack::pop()
{ cout <<"\nPop stack, elemen yang di-pop:"<<A[0];
char temp=A[0];
for (int i=0; i<banyak; i++) A[i]=A[i+1];
A[banyak]='0';
banyak–;
return temp;
}

int main(int argc, char *argv[])
{
Stack stack;

stack.push(')');
stack.push(')');
stack.push('b');
stack.push('+');
stack.push('a');
stack.push('(');
stack.cetak();

for (char c='a';c<'d';c++){
stack.push(c);
stack.cetak();
}
char p = stack.pop();
stack.cetak();
cout << "\n\nCetak pakai overloading : " << stack;
system("PAUSE");
return EXIT_SUCCESS;
}

Praktikum 6

#include <iostream>

using namespace std;

//template <class T>

class Node{

friend class List;

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

public:

Node(char& t, Node* p) : info(t), berikut(p){}

protected:

char info;

Node *berikut;

};

//template <class T>

class List{

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

public:

List() : kepala(0){}

~List();

void sisip(char t);

int hapus(char& t);

int kosong() {return (kepala == 0);}

void cetak();

protected:

Node* kepala;

Node* nodeBaru(char& t,Node* p)

{ Node* q = new Node(t,p); return q;}

};

//template <class T>

ostream& operator<<(ostream& out, const List& k)

{

for (Node* p = k.kepala; p; p=p->berikut)

out << p->info << “->”;

out << “*\n”;

return out;

}

//template <class T>

List::~List()

{

Node* temp;

for (Node* p = kepala; p;)

{

temp = p;

p = p->berikut;

delete temp;

}

}

//template <class T>

void List::sisip(char t)

{

cout << “data “<< t << ” masuk list :”;

Node* p = nodeBaru(t,kepala);

kepala = p;

}

//template <class T>

int List::hapus(char& t)

{

if (kosong()) return 0;

t = kepala->info;

Node* p = kepala;

kepala = kepala->berikut;

delete p;

return 1;

}

//template <class T>

void List::cetak()

{

for (Node* p = kepala; p; p=p->berikut)

cout << p->info << “->”;

cout << “*\n”;

}

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

{

List x;

char data;

x.sisip(‘a’);

cout << x;

x.sisip(‘b’);

cout << x;

x.sisip(‘c’);

cout << x;

x.sisip(‘d’);

cout << x;

for (int i=0; i<4; i++){

x.hapus(data);

cout << data << ” dihapus dari list :”;

cout << x;

}

system(“PAUSE”);

return EXIT_SUCCESS;

}