Write a Program to Check Whether the Given Number is Even or Odd in C++ using Function

Write a program to check whether the given number is even or odd in C++ using Function, If-else statement, and Ternary operator.

In this article, you will learn how to write a program to check whether the given number is even or odd in C++ using Function, If-else statement, and Ternary operator.

 

Example

 

You should have knowledge of the following topics in c++ programming to understand these programs:

• C++ main() function
• C++ cin object
• C++ cout object
• C++ if-else statement
• C++ Functions
• C++ Ternary operator

 

What are even odd numbers?

If an integer number is divided by 2 If its reminder equals zero then it is an even number and if the remainder is greater than zero then it is an odd number.

 

Samples of Even & Odd Numbers

 

In this article, we solve this problem in three methods:

1. Using the If-else statement
2. Using the Ternary Operator
3. Using the Function

Source Code

// Write a Program to Check Whether the Given Number is Even or Odd in C++ using If-else
#include <iostream>
using namespace std;

int main() {
    int x;
    
    cout << "Enter an integer number to check ::\n";
    cin >> x;
    
    if (x % 2 == 0) {
        cout << "The input number is even.\n";
    } else {
        cout << "The input number is odd.\n";
    }
    return 0;
}

Run Program

Output

 

Explanation

In this given program, we have taken input 7 from the user then we checked that if the remainder is equal to zero It's an even number otherwise It's the odd number.

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C++ Program to Check Whether Number is Even or Odd using Ternary Operator

// C++ Program to Check Whether Number is Even or Odd using Ternary Operator
#include <iostream>
using namespace std;

int main() {
    int x;
    
    cout << "Enter an integer number to check ::\n";
    cin >> x;
    
    x = x % 2 == 0 ? 1 : 0;
    
    if (x) {
        cout << "The input number is even.\n";
    } else {
        cout << "The input number is odd.\n";
    }
    return 0;
}

Run Program

Output

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C++ Program to Check Whether Number is Even or Odd using Function

// C++ Program to Check Whether Number is Even or Odd using Function
#include <bits/stdc++.h>
using namespace std;

// This function will check the number type
void CheckNumber(int x) {
    if (x % 2 == 0) {
        cout << "The input number is even.\n";
    } else {
        cout << "The input number is odd.\n";
    }
}

// It's the driver function
int main() {
    int x;
    
    cout << "Enter an integer number to check ::\n";
    cin >> x;

    CheckNumber(x);
    return 0;
}

Run Program 

Output

 

Also, visit these links

C Program to Check Whether a Number is Even or Odd

Java Program to Check Even or Odd Number

Python Program to Check If a Number is Odd or Even