Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (C) 2012 Davide Mottin <mottin@disi.unitn.eu>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * 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 for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

import java.util.Map;

import java.util.Set;

public class Main {
    /**
     * Normalize  all values so the sum is 1
     * @param <K>
     * @param map 
     */
    public static <K> void normalizeMap(Map<K, Double> map) {
        Set<K> keys = map.keySet();
        double sum = 0.0 + map.values().stream().mapToDouble(Double::doubleValue).sum();

        for (K key : keys) {
            map.put(key, map.get(key) / sum);
        }
    }
}