static double nd ( ) {
  return Double . parseDouble ( in . next ( ) ) ;
}

static double nd ( ) { return Double . parseDouble ( in . next ( ) ) ; }
(method_declaration (modifiers) type: (floating_point_type) name: (identifier) parameters: (formal_parameters) body: (block (return_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))))