Java Double Number Create toDouble(Object argSource)

Description

Use this method to convert any Number object to a double.

License

Open Source License

Parameter

Parameter	Description
argSource	a parameter

Declaration

public static double toDouble(Object argSource) 

Method Source Code

//package com.java2s;
/**// w w  w.  j  av  a  2s  .  com
 * Project: JLIB
 * Version: $Id$ 
 * License: (see below block, or the accompanied COPYING.txt file)
 **************************************************************************************** LICENSE BEGIN *****
 * Copyright (c) 2009-2013, JLIB AUTHORS (see the AUTHORS.txt file for the list of the individuals)
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, are permitted provided 
 * that the following conditions are met:
 * 
 *  1) Redistributions of source code must retain the above copyright notice, this list of conditions and the 
 *     following disclaimer.
 *  2) Redistributions in binary form must reproduce the above copyright notice, this list of conditions and 
 *     the following disclaimer in the documentation and/or other materials provided with the distribution.
 *  3) Neither the names of the organisations involved in the JLIB project, nor the names of their 
 *     contributors to the JLIB project may be used to endorse or promote products derived from this software 
 *     without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED 
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR 
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 
 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
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 * 
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 * 
 * In chronological order
 * Author(s):
 *   Dejan Lekic , http://dejan.lekic.org
 * Contributor(s):
 *   -
 */

public class Main {
    /**
     * Use this method to convert any Number object to a double.
     * 
     * NOTE: This method may become deprecated because user can simply do:
     * 
     * Number num = (Number) object; // object is an instance of any Number subtype.
     * double value = num.doubleValue();
     * 
     * @param argSource
     * @return 
     */
    public static double toDouble(Object argSource) {
        double ret = Double.NaN;
        Class argClass = argSource.getClass();

        if (argClass == Byte.class) {
            Byte val = (Byte) argSource;
            ret = val.doubleValue();
        }
        if (argClass == Short.class) {
            Short val = (Short) argSource;
            ret = val.doubleValue();
        }
        if (argClass == Integer.class) {
            Integer val = (Integer) argSource;
            ret = val.doubleValue();
        }
        if (argClass == Long.class) {
            Long val = (Long) argSource;
            ret = val.doubleValue();
        }
        if (argClass == Float.class) {
            Float val = (Float) argSource;
            ret = val.doubleValue();
        }
        if (argClass == Double.class) {
            ret = (Double) argSource;
        }
        return ret;
    }
}

Related

1. toDouble(Number number)
2. toDouble(Number value)
3. toDouble(Number value)
4. toDouble(Object _inStrObj)
5. toDouble(Object _value, double _default)
6. toDouble(Object literal)
7. toDouble(Object number)
8. toDouble(Object number)
9. toDouble(Object o)