static int frequencyDigits ( int n , int d ) {
  int c = 0 ;
  while ( n > 0 ) {
    if ( n % 10 == d ) c ++ ;
    n = n / 10 ;
  }
  return c ;
}

static int frequencyDigits ( int n , int d ) { int c = 0 ; while ( n > 0 ) { if ( n % 10 == d ) c ++ ; n = n / 10 ; } return c ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (while_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (identifier))) consequence: (expression_statement (update_expression (identifier)))) (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))))) (return_statement (identifier))))