Here you can find the source of readfile(String filename)
public static String readfile(String filename) throws IOException
//package com.java2s; /*/*ww w . ja v a2s . c om*/ * Copyright 1998-2012 Linux.org.ru * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.io.*; public class Main { public static String readfile(String filename) throws IOException { StringBuilder out = new StringBuilder(); BufferedReader in = new BufferedReader(new InputStreamReader(new FileInputStream(filename), "KOI8-R")); char[] buf = new char[8192]; int i; while ((i = in.read(buf, 0, buf.length)) > -1) { if (i > 0) { out.append(buf, 0, i); } } in.close(); return out.toString(); } }