Here you can find the source of readFile(InputStream in, String encoding)
public static String readFile(InputStream in, String encoding) throws IOException
/**//from w w w . j a v a2s . c o m * Copyright 2009 Welocalize, Inc. * * 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.File; import java.io.FileFilter; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.FileWriter; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.io.OutputStreamWriter; import java.io.Writer; import java.nio.ByteBuffer; import java.nio.charset.Charset; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import java.util.Map; import java.util.Set; import java.util.regex.Matcher; import java.util.regex.Pattern; import org.apache.log4j.Logger; public class Main{ public static byte[] readFile(File file, int size) throws IOException { return readFile(new FileInputStream(file), size); } /** * Reads bytes from given input stream with specified length. */ public static byte[] readFile(InputStream in, int size) throws IOException { byte[] b = new byte[size]; try { in.read(b, 0, size); } finally { if (in != null) { in.close(); } } return b; } public static String readFile(File file) throws IOException { FileInputStream in = null; try { in = new FileInputStream(file); byte[] b = new byte[in.available()]; in.read(b, 0, b.length); return new String(b); } finally { if (in != null) { in.close(); } } } public static String readFile(File file, String encoding) throws IOException { return readFile(new FileInputStream(file), encoding); } /** * Reads the given input stream to a string content. */ public static String readFile(InputStream in, String encoding) throws IOException { try { byte[] b = new byte[in.available()]; in.read(b); return new String(b, encoding); } finally { if (in != null) { in.close(); } } } }