Java List to Primitive Array toPrimitiveArray(List list)

Description

to Primitive Array

License

Open Source License

Declaration

public static double[] toPrimitiveArray(List<Double> list) 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright (C) 2013  Stefan Schroeder//from w  ww . ja  va  2 s  . c  o  m
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3.0 of the License, or (at your option) any later version.
 *
 * 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.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/

import java.util.Collection;
import java.util.List;

public class Main {
    public static double[] toPrimitiveArray(List<Double> list) {
        double[] arr = new double[list.size()];
        for (int i = 0; i < list.size(); i++)
            arr[i] = list.get(i);
        return arr;
    }

    public static double[] toPrimitiveArray(Collection<Double> collection) {
        double[] arr = new double[collection.size()];
        int i = 0;
        for (Double d : collection) {
            arr[i] = d;
            i++;
        }
        return arr;
    }
}

Related

1. toPrimitiveArray(List array)
2. toPrimitiveArray(List input)
3. toPrimitiveArray(List target_)
4. toPrimitivebyList(List list)
5. toPrimitiveDouble(List values)
6. toPrimitiveIntArray(List temp)