interface probelm?

[harsh garg]

we all know we cannot create the object for the interface,But during the database connectivity , we create the object for the interface...


Connection con;
Statement st;
Class.forName(driver);
con=DriverManager.getConnection("");



here how is possible?

[Maneesh Godbole]

Same way we can create

Set<String>mySet=new HashSet<String>();

Actually what you are creating (by calling new) is a HashSet type of object, but since it is of the type Set, the above statement is legal.

[amitabh mehra]

You can always assign object of child type into reference of parent type.