Java tutorial
//package com.java2s; /***************************************************************************** * This file is part of Rinzo * * Author: Claudio Cancinos WWW: https://sourceforge.net/projects/editorxml Copyright (C): 2008, Claudio Cancinos * * This program 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 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 Lesser General Public License along with this program; If not, see * <http://www.gnu.org/licenses/> ****************************************************************************/ public class Main { public static String getLeadingWhitespace(String str) { if (str == null) { return ""; //$NON-NLS-1$ } int sz = str.length(); StringBuffer buffer = new StringBuffer(); for (int i = 0; i < sz; i++) { if ((Character.isWhitespace(str.charAt(i)))) { buffer.append(str.charAt(i)); } else { break; } } return buffer.toString(); } }