public static double per ( double a , double b ) {
  return ( a + b ) ;
}

public static double per ( double a , double b ) { return ( a + b ) ; }
(method_declaration (modifiers) type: (floating_point_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (floating_point_type) name: (identifier)) (formal_parameter type: (floating_point_type) name: (identifier))) body: (block (return_statement (parenthesized_expression (binary_expression left: (identifier) right: (identifier))))))