COP3330 Exam 2 Review
–
Myers Actual Updated Questions And
Answers
1.
Four things every class
has
-constructor
-destructor
-copy constructor
- assignment operator (overload operator=)
2.
Assignment Operator
-Overload of operator=
-Invoked when something is assigned to object
-Declared format: Typename& operator=(const Typename &)
-makes deep copy similar to copy constructor
-needs to return *this(calling object) to enable cascading
DEEP COPY.
3.
Copy Constructor
-Declared Format: typename(const typename &)
-Invoked when a new copy of an object is created
-copys are made when:
1.
An object is declared and initialized to another objects value
2.
An object is passed or returned by value
DEEP COPY.
4.
how to declare a derived
class
Format:
class derivedname :: class basename
example:
class Sport --> class Football :: class Sport
{ {
} }
5.
Meaning of Protected
members declared as protected can be accessed by the class itself and
by derived classes only
6.
How to declare an array
of objects (not member
data)
