Storing and Retriving from Hashtable

Question

I store countryCode and countryName in Hashtable, but how do i populate it back to my html listBox? And with sorting order?
Hashtable codeHash = new Hashtable();
if (codeHash != null) {
     codeHash.put("AR", "Argentina");
     codeHash.put("AM", "Armenia");
     codeHash.put("AW", "Aruba");
     codeHash.put("AU", "Australia");
     codeHash.put("AT", "Austria");
}JSP :
<select name="countryList">
     <option value="CountyCode"> CountryName </option>
</select>

Answer 1

Things I noticed that might be changed in this snippet:
//declare Map codeHash = new HashTable(), so
//there would be fewer changes if you ever needed it to change
//(to TreeMap for example)
Hashtable codeHash = new Hashtable();
//Why do you check for null? You just created the bloody thing
//like, two lines up..
if (codeHash != null) {
     codeHash.put("AR", "Argentina");
     codeHash.put("AM", "Armenia");
     codeHash.put("AW", "Aruba");
     codeHash.put("AU", "Australia");
     codeHash.put("AT", "Austria");