Here you can find the source of readTextFile(String file)
private static String readTextFile(String file) throws IOException
//package com.java2s; /*/*from ww w. j av a 2 s.c om*/ * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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.BufferedReader; import java.io.FileReader; import java.io.IOException; public class Main { private static String readTextFile(String file) throws IOException { StringBuffer buffer = new StringBuffer(1024); BufferedReader reader = new BufferedReader(new FileReader(file)); char[] chars = new char[1024]; while ((reader.read(chars)) > -1) { buffer.append(String.valueOf(chars)); } reader.close(); return buffer.toString(); } }