Java Array Average average(double[] values)

Description

Get the average of an array of values.

License

Open Source License

Declaration

public static double average(double[] values) 

Method Source Code

//package com.java2s;
/*//  ww  w  . j  a  va 2  s .  c o m
 * RHQ Management Platform
 * Copyright (C) 2005-2008 Red Hat, Inc.
 * All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License, version 2, as
 * published by the Free Software Foundation, and/or the GNU Lesser
 * General Public License, version 2.1, also as published by the Free
 * Software Foundation.
 *
 * This program 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 General Public License and the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU General Public License
 * and the GNU Lesser General Public License along with this program;
 * if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */

public class Main {
    /**
     * Get the average of an array of values.
     */
    public static double average(double[] values) {
        double sum = 0;

        if (values.length == 0) {
            throw new IllegalArgumentException("Array length must be > 0");
        }

        for (int i = 0; i < values.length; i++) {
            sum += values[i];
        }

        return sum / values.length;
    }
}

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