Java String to Long asLong(String param)

Description

as Long

License

Apache License

Declaration

public static Long asLong(String param) 

Method Source Code

//package com.java2s;
/*/*from   w  w  w. ja  v  a  2s. c  o m*/
 * 
 * Copyright 2016 Celyo
 *
 * 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 Long asLong(String param) {
        if (param == null) {
            return null;
        }

        if (param instanceof String) {
            return Long.valueOf(param);
        } else {
            throw new IllegalArgumentException("Invalid agrument type. Convertion can be made only from String.");
        }
    }
}

Related

1. asLong(String str)
2. asLong(String str, long defaultValue)
3. asLong(String string)
4. asLong(String v)