Java Number Parse toNumber(Object object, Number defaultValue)

Description

to Number

License

Open Source License

Declaration

public static Number toNumber(Object object, Number defaultValue) 

Method Source Code

//package com.java2s;
/**********************************************************************************************
 *
 * Asprise Scanning and Imaging API//from   ww  w  .  ja va2  s .c o  m
 * Copyright (C) 1998-2016. Asprise Inc. <asprise.com>
 *
 * This file is licensed under the GNU Affero General Public License version 3 as published by
 * the Free Software Foundation.
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the
 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * You should have received a copy of the GNU Affero General Public License.  If not, please
 * visit <http://www.gnu.org/licenses/agpl-3.0.html>.
 *
 **********************************************************************************************/

public class Main {
    public static Number toNumber(Object object, Number defaultValue) {
        if (object == null) {
            return defaultValue;
        }
        if (object instanceof Number) {
            return (Number) object;
        }

        String s = object.toString();
        s = s.replaceAll("\\.0*$", "");
        try {
            if (s.contains(".")) {
                return Double.parseDouble(s);
            } else {
                return Integer.parseInt(s);
            }
        } catch (NumberFormatException e) {
            return defaultValue;
        }
    }
}

Related

1. isParsable(Object parser, String str)
2. toNumber(char letter)
3. toNumber(CharSequence jsonText)
4. toNumber(final Object obj)
5. toNumber(Object object, Number defaultValue)
6. toNumber(String hash)
7. toNumber(String num)
8. toNumber(String s)
9. toNumber(String string)