static int countOddNumber ( int row_num ) {
  int count = 0 ;
  while ( row_num > 0 ) {
    count += row_num & 1 ;
    row_num >>= 1 ;
  }
  return ( 1 << count ) ;
}

static int countOddNumber ( int row_num ) { int count = 0 ; while ( row_num > 0 ) { count += row_num & 1 ; row_num >>= 1 ; } return ( 1 << count ) ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (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 (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal)))) (expression_statement (assignment_expression left: (identifier) right: (decimal_integer_literal))))) (return_statement (parenthesized_expression (binary_expression left: (decimal_integer_literal) right: (identifier))))))