java - StringEscapeUtils.unescapeHtml doesn't work on strings read from files -

i'm trying read in file contains unicode characters, convert characters corresponding symbols , print resulting text new file. i'm trying use stringescapeutils.unescapehtml lines being printed is, unicode points still intact. did practice run copying single line file, making string , calling stringescapeutils.unescapehtml on that, works perfectly. code below:

    class filewrite  {  public static void main(string args[])   {   try{       string teststring = " \"text\":\"dude knit hat @ party calls beer \u2018libations\u2019 http://t.co/rop8nsnrfu\" ";        filereader instream = new filereader("home timeline.txt");       bufferedreader b = new bufferedreader(instream);        filewriter fstream = new filewriter("out.txt");       bufferedwriter out = new bufferedwriter(fstream);        out.write(stringescapeutils.unescapehtml3(teststring) + "\n");//this gives desired output,                                                                     //with unicode points converted       string line = b.readline().tostring();        while(line != null){         out.write(stringescapeutils.unescapehtml3(line) + "\n");         line = b.readline();       }        //close output streams       b.close();       out.close();   }   catch (exception e){//catch exception if     system.err.println("error: " + e.getmessage());   }   } } 

//this gives desired output, //with unicode points converted out.write(stringescapeutils.unescapehtml3(teststring) + "\n"); 

you mistaken. java unescapes string literals of form @ compile time when builds them class file:

"\u2018libations\u2019" 

there no html 3 escapes in code. method have chosen designed unescape escape sequences of form ‘.

you want unescapejava method.