➤ Hello World! in C++
➤ Print Number in C++
➤ Add 2 Numbers C++
➤ Arithmetic Operation
➤ Sum Avg of 3 Number
➤ Area Program in C++
➤ Simple Interest in C++
➤ Find ASCII value in C++
➤ Swap 2 Number in C++
Flow Control Programs
➤ Even-Odd in C++
➤ +ve, -ve, 0 in C++
➤ Vowel-Consonant
➤ Greatest of 3 no.
➤ Check Leap Year
➤ Calculator Program
➤ Reverse a Number
➤ Sum of Natural Number
➤ GCD of 2 Number
➤ LCM of 2 Number
➤ Find Power in C++
➤ Fibonacci Series in C++
➤ Palindrome Number
➤ Find Factorial in C++
➤ Factorial Using Recursion
➤ Prime Number in C++
➤ Prime Number b/w 1-N
Array
➤ Linear Search in C++
➤ Binary Search in C++
Others
➤ Introduction to C++
➤ Data Types in C++
➤ Range of Data Types
➤ Void main, main vs int main
In this post, we will write a program to check whether the given number is even or odd in C++. We will write a program using the if-else statement and in second program we will use ternary operator to check even or odd numbers in C++. The third program we will develop using a switch case statement. At last, we will write a c++ program to check whether a number is even or odd using the function.
Condition to check even or odd number is:- If the number is divisible by 2 then it is an even number else it is an odd number. Examples of even numbers are- 4, 6, 8, 10, 12, and e.t.c. and the examples of odd numbers are- 5, 7, 9, 11, and e.t.c.
C++ program to check whether Number is Even or Odd using If-else statement
#include<iostream>
using namespace std;
int main()
{
// declare variable
int number;
// take input
cout << "Enter an Integer: " ;
cin >> number;
// check number
if (number % 2 == 0)
cout << number << " is Even Number" << endl;
else
cout << number << " is Odd Number" << endl;
return 0;
}Output:-
Enter an Integer: 5
5is Odd Number
Enter an Integer: 6
6 is Even Number
C++ Program to Check whether Number is Even or Odd Using Ternary Operators
The conditional or ternary operator is similar to the if-else statement. The if-else statement takes more than one line of the statements, but the conditional operator finishes the same task in a single statement. The operands may be an expression, constants or variables. It starts with a condition, hence it is called a conditional operator.
#include<iostream>
using namespace std;
int main()
{
// declare variable
int number;
// take input
cout << "Enter an Integer: " ;
cin >> number;
// check using ternary operator
(number % 2 == 0) ? cout << "Even" << endl : cout << "Odd" << endl;
return 0;
}C++ Program to Check whether Number is Even or Odd Using Switch Case
The switch case statement in C++ programming is a multi-way decision that tests whether an expression matches one of a number of constant integer values, and branches accordingly. Two keywords are used in the program:- switch and case.
#include<iostream>
using namespace std;
int main()
{
// declare variable
int number;
// take input
cout << "Enter an Integer: " ;
cin >> number;
// check using switch case
switch(number % 2)
{
case 0 :
cout << "Even";
break;
case 1 :
cout << "Odd";
break;
}
return 0;
}Using Function
A function is a block of code that performs a specific task. For example, the main is function and every program execution starts from main function in C++ programming.
#include<iostream>
using namespace std;
// function to check odd even
void checkOddEven(int n)
{
if(n%2 == 0)
cout << "Even";
else
cout << "Odd";
}
// main function
int main()
{
// declare variable
int number;
// take input
cout << "Enter an Integer: " ;
cin >> number;
// check odd even
checkOddEven(number);
return 0;
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