Here you can find the source of readTextFile(File f)
public static String readTextFile(File f) throws IOException
//package com.java2s; import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStreamReader; public class Main { public static String readTextFile(File f) throws IOException { StringBuffer buf = new StringBuffer(); BufferedReader in = new BufferedReader(new InputStreamReader(new FileInputStream(f), "UTF-8")); // BufferedReader in = new BufferedReader(new InputStreamReader(new FileInputStream(f))); String inputLine;//w ww . j a va 2s. co m while ((inputLine = in.readLine()) != null) { buf.append(inputLine); buf.append('\n'); } in.close(); return buf.toString(); } }