import java.nio.charset.Charset;

import java.nio.ByteBuffer;

public class CharsetDemo{

public static void main(String[] args){

String msg = "ξξεγβνεμ θθδμχρ";

if(args.length > 0){

msg = args[0];

}

String[] csNames = {"US-ASCII", "ISO-8859-1", "UTF-8", "UTF-16BE", "UTF-16LE", "UTF-16"};

encode(msg, Charset.defaultCharset());

for(String csName : csNames){

encode(msg, Charset.forName(csName));

}

}

static void encode(String msg, Charset charset){

System.out.println("Charset: " + charset.toString());

System.out.println("Message: " + msg);

ByteBuffer buffer = charset.encode(msg);

System.out.println("Encoded: ");

for(int i=0; i< buffer.limit(); i++){

int _byte = Byte.toUnsignedInt(buffer.get(i));

char ch = (char)_byte;

if(Character.isWhitespace(ch) || Character.isISOControl(ch)){

ch = '\u0000'; // empty string

}

System.out.printf("%2d: %02x (%c)%n", i, _byte, ch);

}

System.out.println();

}

}