java链接数据库时返回的count记录值如何取出

String string="select count(*) from mytest_hotel  ";
  resultSet=con.createStatement().executeQuery(string);
  resultSet.next();
  System.out.println(resultSet.getInt(1));

=====================还有一种麻烦的方法

String string="select * from mytest_hotel ";
resultSet=con.createStatement().executeQuery(string);

 int count=0;
  while (resultSet.next())
  {

 count++;
 }
  System.out.println(count);