//유니코드로 화폐단위 넣기 "\"
amount[i]  = "\uFFE6" + currentpoint( itemDetail.getString("tot") );

==============================================================

//화폐단위 숫자 세자리마다 쉼표넣기
 public String currentpoint(String result){
     DecimalFormat df = new DecimalFormat("#,##0");
     DecimalFormatSymbols dfs = new DecimalFormatSymbols();
     dfs.setGroupingSeparator(',');
     df.setGroupingSize(3);
     df.setDecimalFormatSymbols(dfs);
 
     double inputNum = Double.parseDouble(result);
     result = df.format(inputNum).toString();
     return result;
 }