Java Integer Create toInteger(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 int toInteger(Number number) 

Method Source Code

//package com.java2s;
/*/*from w w w .  ja  v  a 2s .c  o 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 int toInteger(Number number) {
        return (int) toDouble(number);
    }

    /**
     * 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. toInteger(int[] bytes)
2. toInteger(Long l)
3. toInteger(long n)
4. toInteger(Number n)
5. toInteger(Number n)
6. toInteger(Object _inStrObj)
7. toInteger(Object _value, int _default)
8. toInteger(Object anObj)
9. toInteger(Object cell)