lecture three: class, object, and operator overloading Flashcards
(9 cards)
1
Q
what are constructors used for?
A
initialize objects upon declaration
2
Q
are constructors called implicitly or explicitly?
A
they are called implicitly when an object is initialized, but can also be called explicitly
3
Q
how do you pass information to constructors?
A
using parameters
4
Q
how can you make a class/ADT look like part of the c++ language? (instead of a.add(b) it’s a + b)
A
by overloading operators
5
Q
are friend functions methods?
A
no
6
Q
do friend functions get the ::?
A
no
7
Q
all classes need a __________
A
default constructor
8
Q
why do all classes need a default constructor?
A
If you declare an array of a type which does not have a default constructor, you get an error. The default constructor is called for each element of the array.
9
Q
A
