More about Pointer in C++

 

#include <bits/stdc++.h>

using namespace std;

int main()

{

    int a = 2;

    int *p = &a;

    cout << a << endl;  // It will print the value of a

    cout << &a << endl; // It will print the Address of a

    cout << p << endl;  // It will print the Address of a

    cout << &p << endl; // It will print the Address of p

    cout << *p << endl; // It will print the value of a

    int *ptr = new int(4);

    cout << *ptr << endl; // It will print the value of

    int *b = new int[3];

    b[0] = 1;

    b[1] = 2;

    b[2] = 3;

    delete[] b;

   // b[2] = 4;

    cout<<"b[0] = "<<b[0]<<endl;

    cout<<"b[1] = "<<b[1]<<endl;

    cout<<"b[2] = "<<b[2]<<endl;

   

    // delete operator

   

    return 0;

}