Modern C++ for Absolute Beginners: A Friendly Introduction to the C++ Programming Language and C++11 to C++23 Standards

© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2023

S. DmitrovićModern C++ for Absolute Beginnershttps://doi.org/10.1007/978-1-4842-9274-7_15

15. Exercises

Slobodan Dmitrović¹  

(1)

Belgrade, Serbia

 

Array Definition

Write a program that defines and initializes an array of five doubles. Change and then print out the values of the first and last array elements.

#include <iostream>

int main()

{

    double arr[5] = { 1.23, 2.45, 8.52, 6.3, 10.15 };

    arr[0] = 2.56;

    arr[4] = 3.14;

    std::cout << "The first array element is: " << arr[0] << '\n';

    std::cout << "The last array element is: " << arr[4] << '\n';

}

Output:

The first array element is: 2.56

The last array element is: 3.14

Pointer to an Object

Write a program ...