static boolean isDivBy9 ( int n ) {
  if ( n == 0 || n == 9 ) return true ;
  if ( n < 9 ) return false ;
  return isDivBy9 ( ( int ) ( n >> 3 ) - ( int ) ( n & 7 ) ) ;
}

static boolean isDivBy9 ( int n ) { if ( n == 0 || n == 9 ) return true ; if ( n < 9 ) return false ; return isDivBy9 ( ( int ) ( n >> 3 ) - ( int ) ( n & 7 ) ) ; }
(method_declaration (modifiers) type: (boolean_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier))) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))) consequence: (return_statement (true))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (return_statement (false))) (return_statement (method_invocation name: (identifier) arguments: (argument_list (binary_expression left: (cast_expression type: (integral_type) value: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal)))) right: (cast_expression type: (integral_type) value: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))))))))))