private String readNodeAddress(){
  String addr="";
  addr=(String)nodeAddrField.getSelectedItem();
  if (addr == null || addr.equals("FF FE ") || addr.equals("FF FF ")) {
    addr=(String)nodeAddr64Field.getSelectedItem();
    if (addr == null)     throw new IllegalArgumentException("Invalid Address");
  }
  return (addr);
}

private String readNodeAddress ( ) { String addr = "" ; addr = ( String ) nodeAddrField . getSelectedItem ( ) ; if ( addr == null || addr . equals ( "FF FE " ) || addr . equals ( "FF FF " ) ) { addr = ( String ) nodeAddr64Field . getSelectedItem ( ) ; if ( addr == null ) throw new IllegalArgumentException ( "Invalid Address" ) ; } return ( addr ) ; }
read selected node address .
