http://www.ibiblio.org/xml/books/xmljava/chapters/ch03s03.html--reference

Table 3.1. Standard Character Sets and Encodings

XML Name Java Name First supported in Java Scripts and Languages
ISO-8859-1 8859_1 1.1 Latin-1: ASCII plus the accented characters needed for most Western European languages including Albanian, Basque, Breton, Catalan, Cornish, Danish, Dutch, English, Estonian, Faroese, Finnish, French, Frisian, Galician, German, Greenlandic, Icelandic, Irish, Italian, Latin, Luxemburgish, Norwegian, Portuguese, Rhaeto-Romanic, Scottish Gaelic, Sorbian, Spanish, and Swedish as well as many non-European languages written in the Latin alphabet such as Swahili and Malaysian
ISO-8859-2 8859_2 1.1 Latin-2: ASCII plus the accented characters needed for most Central European languages including Albanian, Croatian, Czech, Finnish, German, Hungarian, Latin, Polish, Romanian, Slovak, Slovenian, and Sorbian
ISO-8859-3 8859_3 1.1 Latin-3: ASCII plus the accented characters needed for most Southern European languages including English, Esperanto, Finnish, French, German, Italian, Latin, Maltese, Portuguese, and Turkish
ISO-8859-4 8859_4 1.1 Latin-4: ASCII plus the accented characters needed for most Northern European languages including Danish, English, Estonian, Finnish, German, Greenlandic, Latin, Latvian, Lithuanian, Norwegian, S�mi, Slovenian, and Swedish
ISO-8859-5 8859_5 1.1 ASCII plus Cyrillic
ISO-8859-6 8859_6 1.1 ASCII plus Arabic
ISO-8859-7 8859_7 1.1 ASCII plus Greek
ISO-8859-8 8859_8 1.1 ASCII plus Hebrew
ISO-8859-9 8859_9 1.1 Latin-5: same as Latin-1 except the Turkish letters Ğ, ğ, İ, ı, Ş, and ş take the place of the Icelandic letters , , , , , and
ISO-8859-13 ISO8859_13 1.3 Latin-7: ASCII plus the accented characters needed for most Baltic languages including Latvian, Lithuanian, Estonian, and Finnish, as well as English, Danish, Swedish, German, Slovenian, and Norwegian.
ISO-8859-15 ISO8859_15_FDIS 1.2 Latin-9: same as Latin-1 but with the Euro sign instead of the international currency symbol . It also replaces the infrequently used symbol characters , , , , , , and with the infrequently used French and Finnish letters , , , , , , and .
UTF-8 UTF8 1.1 The default encoding of XML documents; each Unicode character is represented in between 1 and 4 bytes.
UTF-16 UnicodeBig or UnicodeLittle 1.2 An encoding of Unicode in which characters in the Basic Multilingual Plane are encoded in two bytes, and all other characters are encoded as two two-byte surrogates
ISO-10646-UCS-2 N/A N/A A straightforward encoding in which each Unicode character is represented as a two-byte integer; cannot represent characters outside the Basic Multilingual Plane
ISO-10646-UCS-4 N/A N/A A straightforward encoding in which each Unicode character is represented as a four-byte integer
ISO-2022-JP JIS 1.1 Japanese
Shift_JIS SJIS 1.1 Japanese
EUC-JP EUCJIS 1.1 Japanese
US-ASCII ASCII 1.2 English
GBK GBK 1.1 Simplified Chinese
Big5 Big5 1.1 Traditional Chinese
ISO-2022-CN ISO2022CN 1.1 Traditional Chinese
ISO-2022-KR ISO2022KR 1.1 Korean

The author has  deliberately omitted XML legal encodings that are not yet supported by Java such as ISO-8859-10, ISO-8859-11, ISO-8859-14, and ISO-8859-16. Its not hard to add them in Java 1.4; but since theyre not available by default, youre better off picking UTF-8 or one of the other encodings of Unicode.

package ch4_package;
import java.io.*;
//import java.util.Scanner;
import java.math.BigInteger;
public class Test_This {
public static void main(String[] args) throws IOException
{
// TODO Auto-generated method stub
InputStreamReader isr = new InputStreamReader(System.in);
BufferedReader br = new BufferedReader(isr);
String file_name ="";
Process pp = new Process();
try{
//System.out.println("---While Loop---");
//writing xml to a file write_xml.xml
System.out.print("Please Enter a xml File name: ");
file_name = br.readLine();
//System.out.print("Now the text to be added : ");
//str_text = br.readLine();
pp.read_file(file_name);
}//try
catch(NumberFormatException e)
{ System.out.println("data was blank");}
}
}
class Process {

public void read_file(String str)throws IOException
{
//FileReader s = null;
BigInteger low = BigInteger.ONE;
BigInteger high = BigInteger.ONE;
try {
OutputStream os_file_fos= new FileOutputStream(str);
OutputStream os_Buff_fos= new BufferedOutputStream(os_file_fos);
OutputStreamWriter out = new OutputStreamWriter(os_Buff_fos, "8859_1");
System.out.println("satrted writing in xml");
out.write("<?xml version=\"1.0\" ");
out.write("encoding=\"ISO-8859-1\"?>\r\n");
out.write("<xml_numbers>\r\n");
for (int i = 1; i <= 10; i++) {
out.write(" <number index=\"" + i + "\">");
out.write(low.toString());
out.write("</number>\r\n");
BigInteger temp = high;
high = high.add(low);
low = temp;
}
out.write("</xml_numbers>\r\n");
out.flush(); // Don't forget to flush!
out.close();
}
catch (UnsupportedEncodingException e) {
System.out.println(
"This VM does not support the Latin-1 character set."
);
}
catch (IOException e) {
System.out.println(e.getMessage());
}
System.out.println("completed writing in xml");
}
}