Here you can find the source of readFile(String path)
public static String readFile(String path) throws IOException
//package com.java2s; /*// w w w . ja va2 s. c o m * Copyright (c) 2016, WSO2 Inc. (http://www.wso2.org) All Rights Reserved. * * 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.BufferedReader; import java.io.FileReader; import java.io.IOException; public class Main { public static String readFile(String path) throws IOException { BufferedReader br = null; try { br = new BufferedReader(new FileReader(path)); StringBuilder sb = new StringBuilder(); String line = br.readLine(); while (line != null) { sb.append(line + "\n"); line = br.readLine(); } return sb.toString(); } finally { br.close(); } } }