static double countdigits ( int n , int k ) {
  if ( n == 0 ) return 0 ;
  int digit = n % 10 ;
  if ( digit == k ) return 1 + countdigits ( n / 10 , k ) ;
  return countdigits ( n / 10 , k ) ;
}

static double countdigits ( int n , int k ) { if ( n == 0 ) return 0 ; int digit = n % 10 ; if ( digit == k ) return 1 + countdigits ( n / 10 , k ) ; return countdigits ( n / 10 , k ) ; }
(method_declaration (modifiers) type: (floating_point_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (return_statement (decimal_integer_literal))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (identifier) right: (decimal_integer_literal)))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) consequence: (return_statement (binary_expression left: (decimal_integer_literal) right: (method_invocation name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (decimal_integer_literal)) (identifier)))))) (return_statement (method_invocation name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (decimal_integer_literal)) (identifier))))))