public static int digSum ( int v ) {
  if ( v < 10 ) return v ;
  else return ( v % 10 ) + digSum ( v / 10 ) ;
}

public static int digSum ( int v ) { if ( v < 10 ) return v ; else return ( v % 10 ) + digSum ( v / 10 ) ; }
(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 (identifier)) alternative: (return_statement (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (method_invocation name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (decimal_integer_literal)))))))))