How to find even numbers in an ArrayList in Java

Odd Numbers: 1 5 3 Even Numbers: 2 6 2

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June 12, 2021October 12, 2021 0 Comments how to find sum of even numbers in java, sum of even numbers in array java, sum of even numbers using for loop in java, sum of even numbers using while loop in java

In this tutorial, we are going to see how to write a Java program to calculate the sum of the even numbers from 1 to N using the For loop and the While loop. Any number divisible by 2 is an even number.

Calculate the sum of even numbers using the For loop

The following Java code allows the user to enter a limit value. Then, this Java program finds the sum of the even numbers from 1 to the cutoff value using the If statement and the For loop.

import java.util.Scanner; public class Main { public static void main(String[] args) { int n, i, p = 0; Scanner sc = new Scanner(System.in); System.out.print("Enter a number:"); n = sc.nextInt(); for(i = 1; i <= n; i++) { if(i % 2 == 0) { p = p + i; } } System.out.println("The sum of even numbers from 1 to "+n+" = "+p); } }

Output:

Enter a number: 100 The sum of even numbers from 1 to 100 = 2550

Calculate the Sum of Even Numbers Using the While Loop

The following Java code allows the user to enter a limit value. Then, this Java program finds the sum of the even numbers from 1 to the cutoff value using the If statement and the While Loop.

import java.util.Scanner; public class Main { public static void main(String[] args) { int n, i = 2, p = 0; Scanner sc = new Scanner(System.in); System.out.print("Enter a number: "); n = sc.nextInt(); while(i <= n) { p = p + i; i = i + 2; } System.out.println("The sum of even numbers from 1 to "+n+" = "+p); } }

Output:

Enter a number: 100 The sum of even numbers from 1 to 100 = 2550

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