Membuat Program C++ Menggunakan Pointer

 Contoh Program C++ Menggunakan Pointer

Contoh 1

Source Code :

#include<iostream>

#include<conio.h>

using namespace std;

main(){

int nil1=5,nil2=15;

int*ptr;

ptr=&nil1;

*ptr=10;

ptr=&nil2;

*ptr=20;

cout<<"Nilai 1 = "<<nil1<<" dan nilai 2 = "<<nil2;

getch();

return 0;

}

Output :

Contoh 2

Source Code :

#include<iostream>

#include<conio.h>

using namespace std;

main(){

int nilai[5]={70,56,90,80,60};

int *px;

int i;

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

{

px = &nilai[i];

cout<<nilai[i]<<" "<<*px<<endl;

}

getch();

}

Output :

Contoh 3

Source Code :

#include<iostream>

#include<conio.h>

using namespace std;

int main(){

int data1=4;

int data2=5;

float data3=3.5;

char nama[11] = "abcdefghij";

int *nilai_p1 = &data1;

int *nilai_p2 = &data2;

char *nilai_p4 = nama;

float *nilai_p3 = &data3;

cout<<"nilai 1 = "<<*nilai_p1<<", alamat1 = "<<&nilai_p1;

cout<<"\nnilai 2 = "<<*nilai_p2<<", alamat2 = "<<&nilai_p2;

cout<<"\nnilai 3 = "<<*nilai_p3<<", alamat3 = "<<&nilai_p3;

cout<<"\nnilai 4 = "<<*nilai_p4<<", alamat4 = "<<&nilai_p4;

getch();

}

Output :

Contoh 4

Source Code :

#include<iostream>

#include<conio.h>

using namespace std;

int main(){

int nilai[3],*penunjuk;

system("cls");

nilai[0]=125;

nilai[1]=345;

nilai[2]=750;

penunjuk = &nilai[0];

cout<<"\nNilai "<<*penunjuk<<" ada di alamat memori "<<penunjuk;

cout<<"\nNilai "<<*(penunjuk+1)<<" ada di alamat memori "<<(penunjuk+1);

cout<<"\nNilai "<<*(penunjuk+2)<<" ada di alamat memori "<<(penunjuk+2);

getch();

}

Output :

Contoh 5

Source Code :

#include<iostream>

#include<conio.h>

using namespace std;

int main(){

char A[5];

char *p;

p=A; *p='a';

p++; *p='b';

p = &A[2]; *p ='c';

p = A+3; *p = 'd';

p = A; *(p+4) = 'e';

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

cout<<A[n]<<",";

getch();

}

Output :

Contoh 6

Source Code :

#include<iostream>

#include<conio.h>

using namespace std;

struct data{

char nama[5];

float nilai;

};

main(){

data mhs;

cout<<"Masukkan Nama = "; cin>>mhs.nama;

cout<<"Masukkan Nilai = "; cin>>mhs.nilai;

char *nilai_p1 = mhs.nama;

float *nilai_p2 = &mhs.nilai;

cout<<"nilai 1 = "<<*nilai_p1<<", alamat1 = "<<&nilai_p1;

cout<<"\nnilai 2 = "<<*nilai_p2<<", alamat2 = "<<&nilai_p2;

getch();

}

Output :