Contoh struct dengan pointer

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

struct orang
{ char nama[30],alamat[30];
short umur; };
main(){
struct orang *saya ;

int i,n;

cout<<"Jumlah data : ";cin>>n;
for(i=1;i<=n;i++)
    { cout<<"Nama : ";cin>>saya->nama;
cout<<"Umur : ";cin>>saya->umur;
cout<<endl; }

for(i=1;i<=n;i++)
{ cout<<"Data ke ["<<i<<"] "<<"bernama "
<<saya->nama<<" dan berumur "
<<saya->umur<<" tahun";
cout<<endl; }

getch(); }

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Pemberian Nilai Array Dengan Pointer

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

void main(){

int x[5], *p, k;

clrscr();
p = x;
x[0] = 5;
x[1] = x[0]; /*x[1]diisi dengan x[0] sehingga
x[1] = 5 */
x[2] = *p + 2; /*x[2] diisi dengan x[0] + 2
sehingga x[2] = 7 */
x[3] = *(p+1)-3; /*x[3] diisi dengan x[1] - 3
sehingga x[3] = 2 */
//x[4] = *(x + 2); /*x[4] diisi dengan x[2]
sehingga x[4] = 7 */
x[4]=*(p+2)-1;
for(k=0; k<5; k++)
cout<<"\nx["<<k<<"] = "<< x[k];


getch(); }

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Contoh Pointer Dengan Array

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

void main(){

int tgl_lahir[] = { 13,9,1982 };
int *ptgl;

ptgl = tgl_lahir; /* ptgl berisi alamat array */
cout<<"Diakses dengan pointer\n";
cout<<"Tanggal = "<< *ptgl;
cout<<"\nBulan = "<< *(ptgl + 1);
cout<<"\nTahun = "<< *(ptgl + 2);
cout<<"\nDiakses dengan array biasa\n";
cout<<"Tanggal = "<< tgl_lahir[0];
cout<<"\nBulan = "<< tgl_lahir[1];
cout<<"\nTahun = "<< tgl_lahir[2];

getch();}

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Program Fibonanci dengan Array

#include <conio.h>
#include <iostream.h>
#define max 10

int fibo[max];

main(){

int i;
fibo[1]=1;
fibo[2]=1;
for (i=3;i<max;i++)
{ fibo [i]=fibo[i-2]+fibo[i-1]; }
cout<<max<<" Bilangan Fibonanci Pertama ada di : \n";
for (i=1;i<max;i++)
{ cout<<" "<<fibo[i];}

getch();}

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Menghitung IPK (Struct)

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

struct mhs
{ int npm[15];
char nama [35]
int terhapus;
}mhs[3];

void main()

{ int i, cari, ketemu;

cout<<"\t\t\tSTMIK AMIKOM YOGYAKARTA";
cout<<endl<<endl;

cout<<"\n\nMasukan Data";

for(i=0;i<3;i++)

{ cout<<"Nama = ";cin>>mhs[i].nama);
cout<<"NIM = ";cin>>mhs[i].nim);
data[i].terhapus = 0;
};

cout<<"Isi data\n";
for(i=0;i<3;i++)
{ if (data[i].terhapus == 0) //tampilkan data yg belum terhapus
printf("Nama = %d\tIPK = %f\n", data[i].npm, data[i].ipk);

};

printf("Cari Nama = "); scanf("%d", &cari); ketemu = 0;
for(i=0;i<3;i++)
{ if (cari == data[i].npm)
ketemu = 1;
}
if (ketemu == 1)
cout<<"\nNama ditemukan";
else
cout<<"\nNama tidak ada";

      printf("Cari Nama hapus = "); scanf("%d", &cari);
for(i=0;i<3;i++)
{ if ((cari == data[i].npm) && (data[i].terhapus == 0))
{ data[i].terhapus = 1; break;

}
}

cout<<"\nIsi data";
for(i=0;i<3;i++)
{ if (data[i].terhapus == 0)
printf("Nama = %d\tIPK = %f\n", data[i].npm, data[i].ipk);
};

printf("Cari Nama yang akan di edit = "); scanf("%d", &cari);
for(i=0;i<3;i++)
{ if (cari == data[i].npm && (data[i].terhapus == 0))
{ cout<<"Masukkan data baru:\n";

printf("Nama = "); scanf("%d", &data[i].npm);
printf("IPK = "); scanf("%f", &data[i].ipk);
data[i].terhapus = 0;
}
}

cout<<"\nIsi data";
for(i=0;i<3;i++)
{ if ((data[i].terhapus == 0))
printf("Nama = %d\tIPK = %f\n", data[i].npm, data[i].ipk);
};

}

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Contoh Sifat Akses Pada JAVA (Protected)

import java.io.*;
class Soal3 {
protected int a,b,c;
public Soal3() { a=3; b=5; c=7; }
public int fungsi1 () {return (a+b-c); }
public void fungsi11() {
if (a>b)
System.out.println("Mengecek a dan b");
else if (b>c)
System.out.println("Mengecek b dan c");
else
System.out.println("Mengecek a dan c");
}
}

class Soal2 extends Soal3 {
public int fungsi2() {return (c%2); }
public void fungsi21() {
for (int i=1;i<b;i++)
c=c-a;
System.out.println("Output 1= "+c);
}
}


public class Soal1{
public static void main (String[] args) {

Soal3 a=new Soal3();
Soal2 b=new Soal2();
a.fungsi11();
b.fungsi11();
System.out.println("Output 2 = "+a.fungsi1());
System.out.println("Output 3 = "+b.fungsi1());
b.fungsi21();
System.out.println("Output 4 = "+b.fungsi2());

}
}

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Pencarian data pada array

#include <stdio.h>
#include <iostream.h>
#include <conio.h>
      int main(){
//deklarasi array
int A[10]={12,24,13,25,10,11,21,20,15,18};
int bil;

//menampilkan elemen array
for (int i=0;i<10;i++)
{ cout<<A[i]<<endl;}
cout<<endl;
//memasukkan nilai yang akan dicari
cout<<"Masukkan nilai yang akan dicari : ";

cin>>bil;
//pencarian data
for (int c=0;c<10;c++)
{ if (A[c]==bil)
{ cout<<"Nilai yang anda cari terdapat pada indek ke- "<<c;
break; }

}getch(); }

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Pencarian Data (Array)

//pencarian data

for (int c=0;c<10;c++)

 {

   if (A[c]==bil)

     { cout<<"Nilai yang anda cari terdapat pada indek     ke- "<<c;

      break;

     }

 } getch(); }

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Mengedit Array

#include <iostream.h>

#include <conio.h>

void main ()

{ int A [5]={20,9,1986,200,13};//dgn inisialisasi

  Int n;

  clrscr();

  cout<<"Data yang lama\n";

  for (n=0;n<5;n++)

  { cout<<" "<<A[n];}

  cout<<"\nData yang baru : \n";

  A[0]=4;

  A[1]=2;

  A[2]=1;

  A[3]=3;

  A[4]=5;

  for (n=0;n<5;n++)

  { cout<<" "<<A[n]; }

  getch();}

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Menghapus Elemen Array

#include <iostream.h>

#include <conio.h>

void main ()

{ int A [5]={20,9,1986,200,13};

  int n,hapus;

  clrscr();

  cout<<"Data yang lama\n";

  for (n=0;n<5;n++)

    { cout<<" "<<A[n];}

  cout<<" data yang ingin dihapus : ";

  cin>>hapus;

  cout<<"\nData yang baru : \n";

  for (n=hapus-1;n<5-1;n++)

    { A[n]=A[n+1];}

  for (n=0;n<4;n++)

    { cout<<" "<<A[n]; }

  getch()}

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Contoh input dan output Array

#include <iostream.h>

#include <conio.h>

main(){

int A[5]; //deklarasi array

//input element array

for (int i=0;i<5;i++)

  { cout<<"A["<<i<<"] = ";

    cin>>A[i];  }

//menampilkan isi dari elemen array

for(int c=0;c<5;c++)

  { cout<<"Nilai pada elemen ke "<<c+1

        <<" adalah = "<<A[c]<<endl;  }

getch();}

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JAVA - Menghitung IPK

class PMG_0459 {
public static void main(String[] args) {
String nama = null;
String tmp = null;
String tmpMk = null;
int i = 0;

double nilai = 0;
double hasil = 0;

System.out.print("Namamu Bro : ");
nama = System.console().readLine();

for(i = 1; i < 6; i++) {
System.out.print("Masukan 2 SKS Mata Kuliah : ");
tmpMk = System.console().readLine();
System.out.print("Masukan Nilai : ");
tmp = System.console().readLine();

if(tmp.equals("A")) {
nilai = (2 * 4);
} else if(tmp.equals("B")) {
nilai = (2 * 3);
} else if(tmp.equals("C")) {
nilai = (2 * 2);
} else if(tmp.equals("D")) {
nilai = (2 * 1);
} else if(tmp.equals("E")) {
nilai = (2 * 0);
}

hasil = hasil + nilai;
}
hasil = hasil / 10;

System.out.println("\nNama : " + nama);
System.out.println("IPK   : " + hasil);
}
}

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Array (Input,edit,cari,delete,tampil) 2

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

void main ()
{ int y [100];
int n, r=0, data, cari, ketemu=0, posisi=0;
int edit, baru, hapus;
char tanya;

kembali:
cout<<"Masukkan Banyak data =";
cin>>data;

//validasi batas maksimal elemen array
if (data >= 100){
cout<<"Data yang anda masukkan melebihi kapasitas\n";
   goto kembali;
}

//input elemen array
for ( n=0 ; n<data ; n++ )
{
cout<<"y["<<n<<"]=";
cin>>y[n];
r += y[n];
}
cout<<"Jumlah ="<<r;

//pencarian data
cout<<"\nMasukkan data yg dicari = ";
cin>>cari;
for(n=0; n<data; n++){
if ( cari == y[n]){
    ketemu=1;
      posisi=n;
      cout<<"\ndata "<<cari<<" ditemukan pada posisi = "<<n;
   }
}
if (ketemu == 0){
cout<<"Data Tidak Ditemukan";
}

//edit elemen array
cout<<"\nApakah Anda ingin mengedit data (Y/N)";
cin>>tanya;
if ( tanya=='y'||tanya=='Y'){
cout<<"\nMasukkan index yang ingin di edit = ";
   cin>>edit;
   cout<<"\nMasukkan nilai = ";
   cin>>baru;
   y[edit] = baru;
   cout<<"\nData Baru";
   for ( n=0 ; n<data ; n++ ){
cout<<"\ny["<<n<<"]="<<y[n];
}
}

//hapus elemen array
cout<<"\nApakah Anda ingin menghapus data (Y/N) = ";
cin>>tanya;
if ( tanya=='y'||tanya=='Y'){
cout<<"\nMasukkan elemen yang ingin di hapus = ";
   cin>>hapus;
   for (n=hapus-1;n<data-1;n++)
{
y[n]=y[n+1];
}

   cout<<"\nData Baru";
   for ( n=0 ; n<data-1 ; n++ ){
cout<<"\ny["<<n<<"]="<<y[n];
}
}
getch(); }

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Array (Input,edit,delete,cari,tampil)

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

void main () {
{
int nilai[100],cari,a,b,hapus;
cout<<"Nilai yang di inginkan :";cin>>a;
cout<<"\nArray \n";
for (b=0;b<a;b++){
cout<<"Nilai : ";cin>>nilai[b];}
cout<<"\nOutput Dari Nilai: \n";
for(b=0;b<a;b++){
   cout<<"\nNilai :"<<nilai[b];}
   cout<<"\n\n================================== ";

cout<<"\n\nEdit Data Yang Lama";
cout<<"\n\nData lama :";
for(a=0;a<b;a++){
cout<<"\nNilai: ";cin>>nilai[a];}
cout<<"\nData Yang Baru : \n";
   nilai[0]=6;
nilai[1]=4;
nilai[2]=9;
nilai[3]=2;
for(a=0;a<b;a++){cout<<" "<<nilai[a];}
      cout<<"\n\n================================== ";

   cout<<"\n\nHapus Data";
cout<<"\n\Data Yang Lama\n";
for(a=0;a<b;a++)
{cout<<" "<<nilai[a];}
cout<<" \nData Yang Dihapus :"; cin>>hapus;
cout<<"Data Baru :\n";
   for (a=hapus-1;a<b-1;a++){nilai[a]=nilai[a+1];}
   for (a=0;a<b-1;a++){cout<<" "<<nilai[a];}
cout<<"\n\ncari Data :";cin>>cari;
for (int a=0;a<b;a++)
{if (nilai[a]==cari)
{cout<<"\n\nNilai Index pada "<<a;
break;
   }
}
}

getch();}

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Program Perulangan

Contoh 1 increment (FOR)

#include<iostream.h>

#include<conio.h>

main(){

for(int i=0;i<3;i++)

{cout<<i<<endl;}

getch();}

Contoh (While)

#include<iostream.h>
#include<conio.h>
main(){
int i=1;
while(i<10)
{cout<<i<<endl;
i+=2;}
getch();}

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Contoh Fungsi Non Void (MODULAR)

cooding:

#include <iostream.h>

#include <conio.h>

int luas(int p, int l)

{return (p*l); }

main(){

   int pj,lb;

   cout<<"Panjang = ";cin>>pj;

   cout<<"Lebar   = ";cin>>lb;

   cout<<"\nLuasnya = "<<luas(pj,lb);

   getch();

}

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Contoh Fungsi Void (MODULAR)

cooding:

#include <iostream.h>

#include <conio.h>

void luas(int &ls, int p, int l)

{ ls = p*l; }

main(){

   int pj,lb, hsl;

   cout<<"Panjang = ";cin>>pj;

   cout<<"Lebar   = ";cin>>lb;

   luas(hsl,pj,lb);

   cout<<"\nLuasnya = "<<hsl;

   getch();

}

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Program Perkreditan Laptop Pada Toko Komputer

cooding

#include< iostream.h>

#include< conio.h >

main()

{

int p,pil,lm,bunga,hrg,dp,angs,a=1;

int j_angs (int angs,int bng, int lm, int hrg, int dp);

cout<<"Selamat datang di Toko Komputer 'FIKTIF'\n";

cout<<"Daftar Merk Laptop\n";

cout<<"1.DELL\n2.ACER\n3.TOSHIBA\n";

cout<<"Masukkan pilihan : ";cin>>p;

if (p==1)

{

cout<<"Daftar Laptop DELL\n";

cout<<"1. Dell Inspiron 4110 Core i3-2330M\n";

cout<<"2. Dell Vostro 3350 Core i5-2410M\n";

cout<<"3. Dell Latitude E5420\n";

cout<<"Masukkan pilihan : ";cin>>pil;

if (pil==1)hrg=7093900;

else if (pil==2)hrg=9589800;

else if (pil==3)hrg=11863500;

}

else if (p==2)

{

cout<<"Daftar Laptop ACER\n";

cout<<"1. Acer Aspire 4253\n";

cout<<"2. Acer Aspire 4349-B812G50Mikk\n";

cout<<"3. Acer Aspire 5951G-2634G75Bnkk\n";

cout<<"Masukkan pilihan : ";cin>>pil;

if (pil==1)hrg=4400000;

else if (pil==2)hrg=4249000;

else if (pil==3)hrg=14390200;

}

else if (p==3)

{

cout<<"Daftar Laptop TOSHIBA\n";

cout<<"1. TOSHIBA Portege Z930-2003 - Ultrabook \n";

cout<<"2. TOSHIBA Satellite C600-1013U - Black \n";

cout<<"3. TOSHIBA Satellite P745-1017U - Black\n";

cout<<"Masukkan pilihan : ";cin>>pil;

if (pil==1)hrg=13999001;

else if (pil==2)hrg=4405500;

else if (pil==3)hrg=8149900;

}

cout<<"Uang muka : ";cin>>dp;

cout<<"Lama angsuran : ";cin>>lm;

angs=(hrg-dp)/lm;

cout<<"\nAnda telah membeli laptop dengan merk :\n";

if (p==1)

{

cout<<"Dell ";

if (pil==1)cout<<"Dell Inspiron 4110 Core i3-2330M\n";

else if (pil==2)cout<<"Dell Vostro 3350 Core i5-2410M\n";

else if (pil==3)cout<<"Dell Latitude E5420\n";

}

else if (p==2)

{

cout<<"Acer ";

if (pil==1)cout<<"Acer Aspire 4253\n";

else if (pil==2)cout<<"Acer Aspire 4349-B812G50Mikk\n";

else if (pil==3)cout<<"Acer Aspire 5951G-2634G75Bnkk\n";

}

else if (p==3)

{

cout<<"Toshiba ";

if (pil==1)cout<<"TOSHIBA Portege Z930-2003 - Ultrabook\n";

else if (pil==2)cout<<"TOSHIBA Satellite C600-1013U - Black\n";

else if (pil==3)cout<<"TOSHIBA Satellite P745-1017U - Black\n";

}

cout<<"Harga Pokok  : "<<hrg<<endl;

cout<<"Uang Muka     : "<<dp<<endl;

cout<<"Lama angsuran : "<<lm<<endl;

do

{

bunga=lm*(hrg-dp)/100;

cout<<"jumlah bunga bulan ke "<<a<<" : "<<bunga<<endl;

cout<<"jumlah angsuran bulan ke "<<a<<" : "<<j_angs (angs, bunga, lm, hrg, dp)<<endl;

lm--;

a++;

}

while (lm>=1);

getch();

}

int j_angs (int angs,int bunga, int lm, int hrg, int dp)

{

do

{

bunga=lm*(hrg-dp)/100;

int j_angs;

j_angs=angs+bunga;

lm--;

return j_angs;

}

while (lm>=1);

 }

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Program c++ (Menghitung Gaji Karyawan)

Program Menghitung Gaji Karyawan

#include <iostream.h>

#include <conio.h>

#include <stdio.h>

main (){

int j_anak,jk,sts,pd,gapok,t_istri,t_anak,gator,gaber,pajak;

char nm[20];

cout<<"Nama Karyawan =";gets(nm);

cout<<"\nJenis Kelamanin (1=laki-laki,2=perempuan) =";cin>>jk;

cout<<"\nStatus (0=Single, 1=Menikah) =";cin>>sts;

cout<<"\nPendidikan (1=D3, 2=S1, 3=S2)=";cin>>pd;

cout<<"\nJumlah Anak=";cin>>j_anak;

if(pd==1)

gapok=500000;

else if(pd==2)

gapok=750000;

else if(pd==3)

gapok=100000;

else

gapok=0;

if(jk==1 && sts==1)

t_istri=500000;

else

t_istri=0;

                      

if(jk==1 && sts==1 &&(j_anak>=1 && j_anak<=2))

t_anak=200000*j_anak;

else if(jk==1 && sts==1 && j_anak>2)

t_anak=200000*2;

else

t_anak=0;

gator=gapok+t_istri+t_anak;

pajak=gator*0.05;

gaber=gator-pajak;

cout<<"\nNama="<<nm;

cout<<"\nGaji Pokok="<<gapok;

cout<<"\nTunjangan Istri="<<t_istri;

cout<<"\nTunjangan Anak="<<t_anak;

cout<<"\nGaji Kotor="<<gator;

cout<<"\nPajak="<<pajak;

cout<<"\nGaji Bersih="<<gaber;

getch () ; }

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Program c++ Program Sewa Buku (FOR)

Program Sewa Buku (FOR)

#include <iostream.h>

#include <stdio.h>

#include <conio.h>

 int Phari, Pbln, Pthn,Khari, Kbln, Kthn,jenis,sewa,hrg,lamasewa,lambat,denda=0;  char nama[30], nim[10], kodeBuku[5],judul[30], pengarang[30], penerbit[30];

main(){  int byk;  cout<<"\n ==================================";  cout<<"\n       PROGRAM PENYEWAAN BUKU"; 

cout<<"\n ==================================";

cout<<"\n\n Nama       : "; gets(nama);

cout<<" No Anggota : "; cin>>nim;

cout<<"\n Jenis buku "; 

cout<<"\n 1.Komik \n";  

cout<<" 2.Novel \n";  

cout<<" 3.Majalah \n\n";

cout<<"Banyak buku yg disewa : ";cin>>byk; 

for(int i=1;i<=byk;i++) 

{cout<<"\n\nJenis buku : ";cin>>jenis;   if(jenis==1)      hrg=1000;    else if(jenis==2)      hrg=2000;    else if(jenis==3)      hrg=3000;    else      hrg=0 ;   

cout<<"Harga sewa\t: "<<hrg;   

cout<<"\nKode Buku\t: "; gets(kodeBuku);

cout<<"Judul Buku\t: "; gets(judul);

cout<<"Pengarang\t: "; gets(pengarang);

cout<<"Penerbit\t: "; gets(penerbit);   sewa=sewa+hrg;   }

  //input tanggal sewa 

cout<<"\n Tanggal Sewa: \n";  while(1){

cout<<" Tanggal [1 - 30]\t: "; cin>>Phari;    if(Phari<=0||Phari>30){      cout<<" ERROR...!\n";    }else{break;}  }  while(1){    cout<<" Bulan [1 - 12]\t\t: "; cin>>Pbln;    if(Pbln<=0||Pbln>12){      cout<<" ERROR...!\n";    }else{break;}  }  while(1){    cout<<" Tahun [yyyy]\t\t: "; cin>>Pthn;    if(Pthn<=0){

cout<<" ERROR...!\n";    }else{break;}  }

  //input tanggal pengembalian

cout<<"\n\n Tanggal Kembali: \n";  while(1){

cout<<" Tanggal [1 - 30]\t: "; cin>>Khari;    if(Khari<=0||Khari>30){

cout<<" ERROR...!\n";    }else{break;}  }  while(1){    cout<<" Bulan [1 - 12]\t\t: "; cin>>Kbln;    if(Kbln<=0||Kbln>12){      cout<<" ERROR...!\n";    }else{break;}  }  while(1){    cout<<" Tahun [yyyy]\t\t: "; cin>>Kthn;    if(Kthn<=0){

cout<<" ERROR...!\n";    }else{break;}  }

  //proses perhitungan  lamasewa = (Khari-Phari)+((Kbln-Pbln)*30)+((Kthn-Pthn)*360); 

if(lamasewa>byk)  {lambat=lamasewa-byk; } //lamasewa - 7;  denda = lambat *100*byk; 

cout<<"\nHarga total sewa : "<<sewa;

cout<<"\nHarga denda      : "<<denda;

cout<<"\nHarga total      : "<<sewa+denda;

  getch();}

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