Here you can find the source of objToLong(Object obj)
public static Long objToLong(Object obj)
//package com.java2s; /**/*from w w w. j a v a 2s . co m*/ * Copyright (c) 2011, StringUtil.java TAIHEIOT and/or its affiliates. All rights reserved. * * Licensed under the TAIHEIOT License, Version 1.0 (the "License"); * you may not use this file except in compliance with the License. * 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 objToLong(Object obj) { return null == obj || "null".equals(obj.toString()) ? 0 : Long.parseLong(obj.toString()); } }