Java Double Number From toDoubleObject(Object obj)

Description

Converts an Object to a Double.

License

Open Source License

Parameter

Parameter	Description
obj	Object to convert

Return

Double

Declaration

public static Double toDoubleObject(Object obj) 

Method Source Code

//package com.java2s;
/*/* w  ww.j  a va2s  .  co m*/
 * Copyright (C) 2003-2011 eXo Platform SAS.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

public class Main {
    /** Converts an <code>Object</code> to a <code>Double</code>. Returns
     * <code>null</code> if conversion is not possible.
     * @param obj Object to convert
     * @return Double
     */
    public static Double toDoubleObject(Object obj) {
        if (obj == null) {
            return null;
        }
        if (obj instanceof Double) {
            return (Double) obj;
        }
        if (obj instanceof Number) {
            return new Double(((Number) obj).doubleValue());
        }
        Double result = null;
        try {
            result = Double.parseDouble(obj.toString());
        } catch (Exception e) {
        }
        return result;
    }
}

Related

1. toDoubleAsUnsigned(long v)
2. toDoubleByObject(Object obj)
3. toDoubleDigit(int number)
4. toDoubleMatrix(Number[][] matrix)
5. toDoublePow10(long m, int n)
6. toDoublePow2(long m, int n)
7. toDoublePrecision(long fixedPrecisionOrdinate)
8. toDoublePrimitiveArray(final Double[] wrappedArray)