public boolean remove(String toRemove){
  String result=mUsedNames.remove(toRemove.toLowerCase());
  if (result != null) {
    notifyChanged();
    return true;
  }
  return false;
}

public boolean remove ( String toRemove ) { String result = mUsedNames . remove ( toRemove . toLowerCase ( ) ) ; if ( result != null ) { notifyChanged ( ) ; return true ; } return false ; }
remove a single name from the list of used names .
