In this post, we will learn how to print even numbers using C++ Programming language.
Any number which is exactly divisible by 2 is called even numbers. For example: 2, 8, 32 and so on.
We will be computing the even numbers using the following methods:
- Using For Loop
- Using While Loop
- Even Numbers in a Range
So, without further ado, let’s begin this tutorial.
C++ Program to Print Even Numbers
// C++ Program to Print Even Numbers
#include <iostream>
using namespace std;
int main(){
int num;
// Asking for input
cout << "Enter the maximum limit: " << endl;
cin >> num;
cout << "Even numbers from 1 to " << num << " are: " << endl;
// Computing even numbers
for (int i = 1; i <= num; i++){
if (i % 2 == 0){
cout << i << " ";
}
}
return 0;
}
Output
Enter the maximum limit:
19
Even numbers from 1 to 19 are:
2 4 6 8 10 12 14 16 18
How Does This Program Work ?
int num;
In this program, we have declared an int data type variable num.
// Asking for input
cout << "Enter the maximum limit: " << endl;
cin >> num;
Then, the user is asked to enter the maximum value up to which the user wants to print even numbers.
for (int i = 1; i <= num; i++){
if (i % 2 == 0){
cout << i << " ";
}
}
Then, we used for loop to find and print all the even numbers lying between 1 and maximum value.
C++ Program to Print Even Numbers Using While Loop
// C++ Program to Print Even Numbers Using While Loop
#include <iostream>
using namespace std;
int main(){
int num, i = 2;
// Asking for input
cout << "Enter the maximum limit; " << endl;
cin >> num;
cout << "Even numbers from 1 to " << num << " are: " << endl;
// computing even numbers
while (i <= num){
cout << i << " ";
i = i + 2;
}
return 0;
}
Output
Enter the maximum limit;
15
Even numbers from 1 to 15 are:
2 4 6 8 10 12 14
C++ Program to Print Even Numbers in a Range
// C++ Program to Print Even Numbers in a Given Range
#include <iostream>
using namespace std;
int main(){
int i, min, max;
// Asking for input
cout << "Enter the minimum limit: " << endl;
cin >> min;
cout << "Enter the maximum limit: " << endl;
cin >> max;
cout << "Even numbers from " << min << " to " << max << " are: " << endl;
for (i = min; i <= max; i++){
if (i % 2 == 0){
cout << i << " ";
}
}
return 0;
}
Output
Enter the minimum limit:
5
Enter the maximum limit:
25
Even numbers from 5 to 25 are:
6 8 10 12 14 16 18 20 22 24
Conclusion
I hope after going through this post, you understand how to print even numbers using C++ Programming language.
If you have any doubt regarding the program, feel free to contact us in the comment section. We will be delighted to assist you.
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