Here you can find the source of readLines(String fileName)
public static String[] readLines(String fileName) throws IOException
//package com.java2s; /****/*from ww w. jav a2s . c o m*/ activequant - activestocks.eu 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 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 General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. contact : contact@activestocks.eu homepage : http://www.activestocks.eu ****/ import java.io.BufferedReader; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.util.ArrayList; import java.util.List; public class Main { public static String[] readLines(String fileName) throws IOException { return readLines(new FileInputStream(fileName)); } public static String[] readLines(InputStream in) throws IOException { List<String> r = new ArrayList<String>(); BufferedReader br = new BufferedReader(new InputStreamReader(in)); String l = br.readLine(); while (l != null) { r.add(l); l = br.readLine(); } return r.toArray(new String[] {}); } }