Regarding ResultSet

[bsonline]

ResultSet is a Interface. So without implementing its method next(), we can use next() method in our appliaction directly.
But according to the concept of a Interface how it is possible ?
Can anyone help me regarding this?

[dmjpro]

ResultSet is a Interface. So without implementing its method next(), we can use next() method in our appliaction directly.
But according to the concept of a Interface how it is possible ?
Can anyone help me regarding this?

Third party (who is providing the JDBC driver for the database) implements those methods.

[JosAH]

To add to the previous reply: try the following code snippet with any ResultSet r:

ResultSet r= ...;
System.out.println("class: "+r.getClass().getName());

... and see wich class really implements the ResultSet interface.

kind regards,

Jos