public static double distance ( double x , double y ) {
  return Math . sqrt ( ( x * x ) + ( y * y ) ) ;
}

public static double distance ( double x , double y ) { return Math . sqrt ( ( x * x ) + ( y * y ) ) ; }
(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 (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) right: (parenthesized_expression (binary_expression left: (identifier) right: (identifier)))))))))