Sum Array of Numbers with for loop

Ilias TsagklisNovember 11th, 2012Last Updated: August 20th, 2013

3 2,921 1 minute read

This is an example of how to get the sum of the numbers in an array using a for loop. The for statement provides a compact way to iterate over a range of values. Getting the sum using a for loop implies that you should:

Create an array of numbers, in the example int values.
Create a for statement, with an int variable from 0 up to the length of the array, incremented by one each time in the loop.
In the for statement add each of the array’s elements to an int sum.

Let’s take a look at the code snippet that follows:

package com.javacodegeeks.snippets.basics;
 
public class SumArrayWithForLoop {
     
    public static void main(String[] args) {
         
        // array to sum
        int[] numbers = new int[]{ 10, 10, 10, 10};
          
        int sum = 0;
          
        for (int i=0; i < numbers.length ; i++) {
            sum = sum + numbers[i];
        }
          
        System.out.println("Sum value of array elements is : " + sum);
         
    }
 
}