Java Double Number Create toDouble(final Object obj)

Description

to Double

License

Open Source License

Declaration

public static double toDouble(final Object obj) 

Method Source Code

//package com.java2s;
/*/*from w  ww  .j  a v a  2  s  .  c o m*/
 * Swift Parallel Scripting Language (http://swift-lang.org)
 * Code from Java CoG Kit Project (see notice below) with modifications.
 *
 * Copyright 2005-2014 University of Chicago
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * 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.
 */

public class Main {
    public static double toDouble(final Object obj) {
        try {
            if (obj instanceof String) {
                return Double.valueOf((String) obj).doubleValue();
            } else if (obj instanceof Number) {
                return ((Number) obj).doubleValue();
            } else {
                throw new IllegalArgumentException("Could not convert value to number: " + obj);
            }
        } catch (Exception e) {
            throw new IllegalArgumentException("Could not convert value to number: " + obj, e);
        }
    }
}

Related

1. toDouble(final byte[] bytes)
2. toDouble(final byte[] inputBytes, final int offset)
3. toDouble(final int[] a, final int len)
4. toDouble(final Number n)
5. toDouble(final Object obj)
6. toDouble(final Object value)
7. toDouble(final Object valueRep)
8. toDouble(final String argStr)
9. toDouble(final String value)