UserDefinedFunctionsDEMO.cpp

//************************************************************************
// Author: Rolando Carreon
// Date: mar 4 2025
// Language: C++
// Assignment: userdefinedfunctionsDEMO
// Description: adds two integrers
//************************************************************************

#include<iostream>
using namespace std;

// function prototypes
int add(int, int);
void printGreeting();
void printDifference(int, int);



int main()
{
    // declare local variables
    int num1 = 5, num2 = 10;
    int sum;
    
    // display the user greeting
    printGreeting();
    
    
    // call the function to get the sum of the numbers
    sum = add(num1, num2);

    //display the result
    cout << "The sum is " << sum << endl;
    
    // get the difference in the numbers
    printDifference(num1, num2);
    
    
    return 0;
}




// function definitions

// function accepts two integers and reyrns the sum
int add(int firstNum, int secondNum)
{
    return firstNum + secondNum;
}


// function to display a greeting to the user
void printGreeting()
{
    cout << "Hello, World!\n";
}


// function that accepts two integrers and displays the difference
// the difference is firstNum - secondNum
void printDifference(int firstNum, int secondNum)
{
    // declare local variables
    int diff = firstNum - secondNum;
    
    // display the result
    cout << "The difference is: " << diff << endl;
}