Here you can find the source of firstColumnRemovable(List
private static boolean firstColumnRemovable(List<String> data)
//package com.java2s; /* ======================================================================== * PlantUML : a free UML diagram generator * ======================================================================== * * (C) Copyright 2009-2014, Arnaud Roques * * Project Info: http://plantuml.sourceforge.net * /* w w w . j av a 2 s . c o m*/ * This file is part of PlantUML. * * PlantUML 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 3 of the License, or * (at your option) any later version. * * PlantUML 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, * USA. * * * Original Author: Arnaud Roques */ import java.util.List; public class Main { private static boolean firstColumnRemovable(List<String> data) { boolean allEmpty = true; for (String s : data) { if (s.length() == 0) { continue; } allEmpty = false; final char c = s.charAt(0); if (c != ' ' && c != '\t') { return false; } } return allEmpty == false; } }