public static double rad ( double deg ) {
  return deg * Math . PI / 180 ;
}

public static double rad ( double deg ) { return deg * Math . PI / 180 ; }
(method_declaration (modifiers) type: (floating_point_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (floating_point_type) name: (identifier))) body: (block (return_statement (binary_expression left: (binary_expression left: (identifier) right: (field_access object: (identifier) field: (identifier))) right: (decimal_integer_literal)))))