Error: C2228: left of '' must have class/struct/union

Question

I\'m a long time Java user learning C++ with Qt and I\'m having a lot of trouble understanding how methods work. Right now, I\'m trying to figure out databases, and tried to

Answer 1

In support to the accepted answer.

From dcl.init#11:

An object whose initializer is an empty set of parentheses, i.e., (), shall be value-initialized.

[ Note: Since () is not permitted by the syntax for initializer,

X a();

is not the declaration of an object of class X, but the declaration of a function taking no argument and returning an X. The form () is permitted in certain other initialization contexts ([expr.new], [expr.type.conv], [class.base.init]). — end note ]