public static long repeatedSum ( long n ) {
  if ( n == 0 ) return 0 ;
  return ( n % 9 == 0 ) ? 9 : ( n % 9 ) ;
}

public static long repeatedSum ( long n ) { if ( n == 0 ) return 0 ; return ( n % 9 == 0 ) ? 9 : ( n % 9 ) ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (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))) (return_statement (ternary_expression condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (decimal_integer_literal))) consequence: (decimal_integer_literal) alternative: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal)))))))