c++

Question 1

What two lines usually precede every source file?

Answer 1

#include 
using namespace std;

Question 2

does an array in c++ have a length field like java?

Answer 2

No

Question 3

What does the header file contain in c++?

Answer 3

class/function declarations

Question 4

What should member variables start with?

Answer 4

m_

Question 5

When is a destructor executed?

Answer 5

When the instance of the constructor is overwritten

Question 6

What is inlining in c++ and in java?

Answer 6

declaring body and header of a function on the same line

Question 7

When overloading a function does the @overload need to precede the declaration?

Answer 7

No

Question 8

What type is null?

Answer 8

int

Question 9

What is the syntax for default parameters?

Answer 9

type function_name (type a, type b = value)

Question 10

If B is a superclass of A, what is the syntax for inheritance?

Answer 10

class B : public A

Question 11

Can a class inherit more than one class?

Answer 11

Yes

Question 12

If the subclass method has to overwrite from the superclass what keyword must be used?

Answer 12

virtual

Question 13

In the superclass, how is an abstract method defined?

Answer 13

virtual type name() = 0;

Question 14

What is a pointer?

Answer 14

a memory address

Question 15

How is a pointer defined?

Answer 15

int* name;

Question 16

What are the 4 pillars of object oriented programming?

Answer 16

1. ) Encapsulation
2. ) Data hiding
3. ) Inheritance
4. ) Polymorphism

Question 17

What is a trigraph?

Answer 17

A series of 3 symbols that represent compiler recognized symbols

Question 18

Are trigraphs supported by every comiler?

Answer 18

No

Question 19

What do enumeration types do?

Answer 19

Allow for custom types

Question 20

What are the two ways to define a constant in c++?

Answer 20

using the #define or const keyword

Question 21

What are the three type qualifiers in c++?

Answer 21

const, volatile, restrict

Question 22

What are the differences between the auto and register storage classes?

Answer 22

It is given a small memory allocation, but does not have a memory address

Question 23

What variables should be put in the register?

Answer 23

variables that need to be accessed quickly, such as counters

Question 24

What is special about variables with the extern storage class?

Answer 24

They are visible to external source files

Question 25

What is the traditional way for writing an infinite loop?

Answer 25

for(;;)

Question 26

If Exp1 is false for Exp1 ? Exp2 : Exp3, what expression is executed?

Answer 26

Exp3

Question 27

What is the difference between a struct and a class in c++?

Answer 27

A struct has members that are public by default for instances and derived classes