Here you can find the source of fromString(String s)
public static long fromString(String s)
//package com.java2s; /*/*w ww . j a va 2 s . com*/ * #%L * ActivityInfo Server * %% * Copyright (C) 2009 - 2013 UNICEF * %% * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public * License along with this program. If not, see * <http://www.gnu.org/licenses/gpl-3.0.html>. * #L% */ public class Main { public static long fromString(String s) { if (s == null) { return 0; } String[] parts = s.split("\\."); return Long.parseLong(parts[0]); } }