Here you can find the source of asInt(String number)
private static int asInt(String number)
//package com.java2s; /*/*from w ww .j ava 2 s .co m*/ Created on Aug 17, 2011 by mschilli ALMA - Atacama Large Millimiter Array (c) European Southern Observatory, 2011 This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ public class Main { private static int asInt(String number) { if (number.charAt(0) == '+') // Integer class cannot parse "+" prefix number = number.substring(1); return Integer.parseInt(number); } }