Program to Check Whether a Number is Even or Odd [C, C++, Python & Java]

This tutorial will help you write a program in C, C++, Python, and Java to check whether a user-entered number is even or odd.

To write this program, you must know the programming language syntax and the if...else statement.

So, let us get started!

What is an Even and Odd Number?

Odd Number: Any natural number expressed in the form of (2n+1), where n is a natural number, is an odd number. In other words, it is a number not divisible by 2.

Examples of odd numbers include 1, 3, 5, 7, 9, etc.

Even Number: Any natural number expressed in the form of 2n, where n is a natural number, is an even number. In other words, it is a number completely divisible by 2.

Examples of even numbers include 2, 4, 6, 8, etc.

C Program to Check Whether the Number is Even or Odd

#include<stdio.h>
int main()
{
   int num;
   printf("Enter a number: ");
   scanf("%d", &num);
   if(num%2==0)
      printf("It is an even number.");
   else
      printf("It is an odd number.");
    return 0;
}

Output

Enter a number: 56
It is an even number.

C++ Program to Check Whether the Number is Even or Odd

#include<iostream>
using namespace std;
int main()
{
   int num;
   cout<<"Enter a number: ";
   cin>>num;
   if(num%2==0)
      cout<<"It is an even number.";
   else
      cout<<"It is an odd number.";
}

Output

Enter a number: 67
It is an odd number.

Python Program to Check Whether the Number is Even or Odd

num=int(input("Enter a number: "))
if num%2==0:
    print("It is an even number")
else:
    print("It is an odd number")

Output

Enter a number: 123
It is an odd number

Java Program to Check Whether the Number is Even or Odd

import java.util.*;
public class Main
{
    public static void main(String[] args)
    {
        int num;
        Scanner sc = new Scanner(System.in);
        System.out.println("Enter a number: ");
        num = sc.nextInt();
        if(num%2==0)
            System.out.println("It is an even number.");
        else
            System.out.println("It is an odd number.");
    }
}

Output

Enter a number: 
78
It is an even number.

Conclusion

You might have found it easy to write a program in C, C++, Python, and Java to check whether a number is even or odd. It is an entry-level program where individuals implement to learn a specific programming language.

If you face any difficulties, do let us know in the comments. We would be glad to help you.

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