Here you can find the source of readFileAsString(String fname)
public static String readFileAsString(String fname) throws IOException
//package com.java2s; /**// www .ja va 2s. c o m * Copyright 2014 * SMEdit https://github.com/StarMade/SMEdit * SMTools https://github.com/StarMade/SMTools * * 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.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.ByteArrayOutputStream; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; public class Main { public static String readFileAsString(String fname) throws IOException { return new String(readFile(fname)); } public static byte[] readFile(String fname) throws IOException { byte[] ret; try (FileInputStream fis = new FileInputStream(fname)) { ret = readStream(fis); } return ret; } public static byte[] readStream(InputStream is) throws IOException { ByteArrayOutputStream baos = new ByteArrayOutputStream(); copy(is, baos); return baos.toByteArray(); } public static void copy(InputStream is, OutputStream os) throws IOException { if (!(is instanceof BufferedInputStream)) { is = new BufferedInputStream(is); } if (!(os instanceof BufferedOutputStream)) { os = new BufferedOutputStream(os); } for (;;) { int ch = is.read(); if (ch == -1) { break; } os.write(ch); } os.flush(); } }