How to use

format

method

in

com.webobjects.foundation.NSNumberFormatter

try {
  if (numberFormat != null) {
    value = ERXNumberFormatter.numberFormatterForPattern(numberFormat).format(value);

public String singleTotal() {
  if(recordGroup() == null)
    return noTotalLabel();
  String totalKey = totalToShow();
  double doubleValue = 0.0;
  
  if(totalKey != null) {
    NSArray tots = recordGroup().totalList();
    
    if (tots != null && tots.count() > 0) {
      DRValue v = recordGroup().totalForKey(totalToShow());
      if(v != null) {
        doubleValue = v.total();
      } else {
        return noTotalLabel();
      }
    }
  }
  Number nm = Double.valueOf(doubleValue);
  String formatString = (String)valueForBinding("formatForSingleTotal");
  NSNumberFormatter formatter = ERXNumberFormatter.numberFormatterForPattern(formatString);
  return formatter.format(nm);
}