Here you can find the source of readTextFile(File aFile)
public static String readTextFile(File aFile) throws IOException
//package com.java2s; /*/*from www . jav a 2s . c o m*/ Open Auto Trading : A fully automatic equities trading platform with machine learning capabilities Copyright (C) 2015 AnyObject Ltd. 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/>. */ import java.io.*; public class Main { public static String readTextFile(File aFile) throws IOException { return read(new BufferedReader(new FileReader(aFile))); } public static String read(BufferedReader bufferedReader) throws IOException { StringBuilder contents = new StringBuilder(); try { String line = null; while ((line = bufferedReader.readLine()) != null) { contents.append(line); contents.append(System.getProperty("line.separator")); } } finally { bufferedReader.close(); } return contents.toString(); } }