Here you can find the source of sum(long[] counts)
public static long sum(long[] counts)
//package com.java2s; /*/* w ww.java 2 s. com*/ * (C) Copyright 2009 Nuxeo SAS (http://nuxeo.com/) and contributors. * * All rights reserved. This program and the accompanying materials * are made available under the terms of the GNU Lesser General Public License * (LGPL) version 2.1 which accompanies this distribution, and is available at * http://www.gnu.org/licenses/lgpl.html * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * Contributors: * Olivier Grisel */ public class Main { public static long sum(long[] counts) { long sum = 0; for (int i = 0; i < counts.length; i++) { sum += counts[i]; } return sum; } }