Java Double Number Create toDouble(Object value)

Description

to Double

License

Apache License

Declaration

public static Double toDouble(Object value) 

Method Source Code

//package com.java2s;
/**//from w  w w .  ja v  a2 s .c  o m
 * Copyright 2008-2015 Qualogy Solutions B.V.
 *
 * 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(Object value) {
        return toDouble(value, null);
    }

    public static Double toDouble(Object value, Double defaultValue) {
        if (value instanceof Double) {
            return (Double) value;
        }
        if (value instanceof Number) {
            return ((Number) value).doubleValue();
        }
        try {
            return Double.parseDouble(toString(value, null));
        } catch (Exception e) {
        }
        return defaultValue;
    }

    public static String toString(Object value, String defaultValue) {
        if (value instanceof String) {
            return (String) value;
        }
        if (value != null) {
            return value.toString();
        }
        return defaultValue;
    }
}

Related

1. toDouble(Object val)
2. toDouble(Object value)
3. toDouble(Object value)
4. toDouble(Object value)
5. toDouble(Object value)
6. toDouble(Object value, double nullValue)
7. toDouble(Object x)
8. toDouble(short[] arr)
9. toDouble(short[] src)