Convertion Russian characters to one with Unicode-encoded characters for Java application

1.  Online http://native2ascii.net .
2. With utillity natime2ascii in Sun JDK.
   
   Documentation: http://docs.oracle.com
   
   Create a file:
   touch ~/Test.txt
   
   Write to file Russian characters:
   echo Русский > Test.txt
   
   Go to the Java jdk bin directory:
   cd /usr/lib/jvm/jdk1.7.9/bin
   
   And run the natime2ascii:
   ./native2ascii -encoding UTF-8 ~/Test.txt ~/Test.txt
   
   Look in the file:
   less ~/Test.txt
    \u0420\u0443\u0441\u0441\u043a\u0438\u0439