Java tutorial
//package com.java2s; public class Main { public static double absSquareSum(double[] input) { double sum = 0; for (int i = 0; i < input.length; i++) { sum += Math.pow(Math.abs(input[i]), 2); } return sum; } public static void abs(double[] input) { for (int i = 0; i < input.length; i++) { input[i] += Math.abs(input[i]); } } }