Java Collection to Array toDouble(final Collection numbers)

Description

to Double

License

Open Source License

Declaration

public static Double[] toDouble(final Collection<? extends Number> numbers) 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright (c) 2015, 2017 Lablicate GmbH.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:/* w w  w. j  a  v  a  2  s .  com*/
 * Dr. Alexander Kerner - initial API and implementation
 *******************************************************************************/

import java.util.Collection;

public class Main {
    public static Double[] toDouble(final Collection<? extends Number> numbers) {

        return toDouble(numbers.toArray(new Number[numbers.size()]));
    }

    public static Double[] toDouble(final Number... numbers) {

        final Double[] result = new Double[numbers.length];
        for (int i = 0; i < result.length; i++) {
            result[i] = new Double(numbers[i].doubleValue());
        }
        return result;
    }
}

Related

1. toCharArray(Collection source)
2. toCharArray(Collection patterns)
3. toClassArray(Collection> collection)
4. toClassArray(Collection> collection)
5. toClassArray(final Collection collection)
6. toDoubleArray(Collection items)
7. toDoubleArray(Collection ds)
8. toDoubleArray(final Collection doubleColl)
9. toFloatArray(Collection collection)