General

Question 1

What is polymorphism?

Answer 1

Polymorphism describes a pattern in object oriented programming in which classes have different functionality while sharing a common interface.

Question 2

What is encapsulation?

Answer 2

A language mechanism for restricting access to some of the object’s components.

Question 3

What are storage classes?

Answer 3

A storage class defines the scope (visibility) and life-time of variables and/or functions within a C++ Program. These specifiers precede the type that they modify.

    auto
    register
    static
    extern
    mutable

Question 4

What is the register storage class?

Answer 4

The register storage class is used to define local variables that should be stored in a register instead of RAM.

Question 5

What is the static storage class?

Answer 5

The static storage class instructs the compiler to keep a local variable in existence during the life-time of the program instead of creating and destroying it each time it comes into and goes out of scope.

Question 6

What is the extern storage class?

Answer 6

The extern storage class is used to give a reference of a global variable that is visible to ALL the program files.

Question 7

What is inheritance?

Answer 7

Inheritance enables new objects to take on the properties of existing objects.