Modern C++ for Absolute Beginners: A Friendly Introduction to C++ Programming Language and C++11 to C++20 Standards

© Slobodan Dmitrović 2020

S. DmitrovićModern C++ for Absolute Beginnershttps://doi.org/10.1007/978-1-4842-6047-0_15

15. Exercises

Slobodan Dmitrović¹ 

(1)

Belgrade, Serbia

 

15.1 Array Definition

Write a program that defines and initializes an array of five doubles. Change and print 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';

}

15.2 Pointer to an Object

Write a program that defines an object of type double. Define a pointer that points to that object. Print the value of the pointed-to object by dereferencing ...