Here you can find the source of readFile(String path)
public static String readFile(String path) throws IOException
//package com.java2s; /**//from w w w.ja va2 s . co m * Sketch Outline provides a tree view of a sketch and its * members functions, variables and inner classes. Clicking on any * node moves the cursor to its definition. * * Copyright (c) 2012 Manindra Moharana * * ##copyright## * * 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 * * * @author Manindra Moharana ##author## * @modified 19-03-2012 ##date## * @version 0.1.5 (beta) ##version## */ import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStreamReader; public class Main { public static String readFile(File file) throws IOException { BufferedReader reader = new BufferedReader(new InputStreamReader( new FileInputStream(file))); try { StringBuilder ret = new StringBuilder(); String line; while ((line = reader.readLine()) != null) { ret.append(line); ret.append("\n"); } return ret.toString(); } finally { reader.close(); } } public static String readFile(String path) throws IOException { return readFile(new File(path)); } }