Java Double Number Create toDouble(Number number)

Description

to overcome Exception occur when Integer, Double or other Number object is null when try to do mathematics operation (+-/*)

License

Apache License

Parameter

Parameter	Description
number	a parameter

Declaration

public static double toDouble(Number number) 

Method Source Code

//package com.java2s;
/*//  w  ww.  j  a  v  a 2  s.co  m
 * Copyright 2012 Eng Kam Hon (kamhon@gmail.com)
 * 
 * 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 {
    /**
     * to overcome Exception occur when Integer, Double or other Number object is null when try to do mathematics
     * operation (+-/*)
     * 
     * @param number
     * @return
     */
    public static double toDouble(Number number) {
        if (number == null)
            return 0;

        return number.doubleValue();
    }
}

Related

1. toDouble(int[] array)
2. toDouble(int[] array)
3. toDouble(int[] rgb)
4. toDouble(int[][] arr)
5. toDouble(Number n)
6. toDouble(Number value)
7. toDouble(Number value)
8. toDouble(Object _inStrObj)
9. toDouble(Object _value, double _default)