Java List Transform transformToDoublePrimitiveArray( List values)

Description

Transform to a primitive double array.

License

Open Source License

Parameter

Parameter	Description
values	a parameter

Declaration

public static double[] transformToDoublePrimitiveArray(
        List<Double> values) 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright (c) Nov 2, 2012 NetXForge.//from w w  w.j  a va2  s .co  m
 * 
 * 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 3 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, see <http://www.gnu.org/licenses/>
 * 
 * Contributors: Christophe Bouhier - initial API and implementation and/or
 * initial documentation
 *******************************************************************************/

import java.util.List;

public class Main {
    /**
     * Transform to a primitive double array.
     * 
     * @param values
     * @return
     */
    public static double[] transformToDoublePrimitiveArray(
            List<Double> values) {
        final double[] doubles = new double[values.size()];
        int i = 0;
        for (final Double d : values) {
            doubles[i] = d.doubleValue();
            i++;
        }
        return doubles;
    }

    /**
     * Transform to an Array primitive double array.
     * 
     * @param values
     * @return
     */
    public static double[] transformToDoublePrimitiveArray(Double[] values) {
        final double[] doubles = new double[values.length];
        int i = 0;
        for (final Double d : values) {
            doubles[i] = d.doubleValue();
            i++;
        }
        return doubles;
    }
}

Related

1. transformContinuouslyVariablesByThreshold(List> data, int index, int threshold)
2. transformIntoAList(String... elements)
3. transformNumberedPropertiesToList(Properties props)
4. transformStringListToString(List fileContentAsList)
5. transformStringToListOfStrings(String line)
6. transformToJsonArray(List objectsWithJsonToString)