My-Java-Journey/EvenSum.java at main · aayanshanand/My-Java-Journey · GitHub

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import java.util.Scanner; // Import Scanner class for user input

public class EvenSum {

// Function to calculate the sum of even numbers from 1 to n

public static int sumOfEvenNum(int n) {

int sum = 0; // Variable to store the sum of even numbers

// Loop through even numbers from 2 to n

for (int i = 2; i <= n; i += 2) {

sum += i; // Add current even number to sum

}

return sum; // Return the final sum

}

public static void main(String[] args) {

// Create a Scanner object to take user input

try (Scanner scanner = new Scanner(System.in)) {

System.out.print("Enter the value of n: "); // Prompt user for input

int n = scanner.nextInt(); // Read input from user

// Print the result using the sumOfEvenNum function

System.out.println("Sum of even numbers from 1 to " + n + " is: " + sumOfEvenNum(n));

}

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