Declaring and Initializing C++ Constants

Question

In this lab, you declare and initialize constants in a C++ program. The program, which is saved in a file named NewAge2.cpp, calculates your age in the year 2050.

Instructions

1. Declare a constant named YEAR, and initialize YEAR with the value 2050.
2. Edit the statement myNewAge = myCurrentAge + (2050 − currentYear) so it uses the constant named YEAR.
3. Edit the statement cout << "I will be " << myNewAge << " in 2050." << endl; so it uses the constant named YEAR.
4. Execute the program by clicking the Run button at the bottom of the screen.

Answer 1

using namespace std;

#include <iostream>

const int YEAR = 2050;

int main()

{

int myCurrentAge = -1;

int currentYear=2020;

while (myCurrentAge<0)

{

cout << "Please input your current age:>";

cin >> myCurrentAge;

}

int myNewAge = myCurrentAge + (YEAR - currentYear);

cout << "I will be " << myNewAge << " in " << YEAR << endl;

}