Test 2

Question 0

In C++ what is the difference between a struct and a class?

Answer 0

the deaufult access specifier

Question 1

What is the primary valve in using virtual functions within C++?

Answer 1

They allow you to provide unique behavior for derived classes

Question 2

What is the point in making a destructor “virtual”?

Answer 2

It causes the derived class destructor to be called upon delete

Question 3

Which statement is true of “pure virtul” functions?

a) They force you to derive another class from the base class which contains function.
b) They contain no code

Answer 3

Both of these

Question 4

If two functions within the same classhave the same name what happens?

Answer 4

either one will be called depending on the parameters

Question 5

What is wrong whit the following?
struct Svalues (char x .....x = 25 y = 30
class C values (...)          x = 25 y = 30

Answer 5

Private members of a class are being accessed by other than a member/ friend function.

Question 6

Is the following class definition correct?

class point
{ int x,y;
void point():
void point (int n, int m); };

Answer 6

It is not correct, construction can not return any value

Question 7

Suppose that we declare an array int ARR [10] and perform the following instruction ARR[10]=10.7. What is the value stored in the 10th array element?

Answer 7

We can not predict

Question 8

Consider the following class definition. Which of the presented definitions is correct?

class point
{int x;
const int y;
public:
point (int n, int m);};

Answer 8

y (m) {x = n}

Question 9

consider the following class definition

class A {public:
int x;
const int y;
static int z;
A(int xx, int yy, int zz); };
                                          Is this correct?
A(int xx, int yy, int zz) : y(yy), z(zz)
{x=xx}

Answer 9

No, static members can not be initialized at initialization list.

Question 10

Consider the following class sequence. Determine type of acces to member x1,x2,y1,y2

class x1
{intx1;
public:
int y1; };....

Answer 10

x1,x2,y2-private, y1 - public

Question 11

Consider the following coder frgment. Which exception handler will be used ?

try {int number 7;
throw number;}
catch (const int a) {first}….

Answer 11

First

Question 12

The following class template has been defined:
template 
which of the defined below template class is correct

Answer 12

test ob1;

Question 13

The following function has been definied
void test(int y, float z =6.55,intk,inti=0)
which of the specified below function calls is correct?

Answer 13

No correct answer

Question 14

Consider the following code fragment. Determine the valuesof members “x”and “y” for object “begin”

Answer 14

no correct answer

Question 15

consider the following code frament 
class A 
{int x;
Does the compiler reports by reference to the memeber function of class C?

Answer 15

Yes it is ambiguous reference

Question 16

consider the following code frament 
class A 
{int x;
How would you define a class member, which will have the same vluefor all objects of this class

Answer 16

As a static member

Question 17

Multiple inheritance is best decribed as?

Answer 17

A class derived from two or more base classes.

Question 18

Consider the following program fragment
class figure…
which handler is executed

Answer 18

THE PROGRAM IS WRONG

Question 19

Do the following catch block is correct?

catch (int) { ……throw;}

Answer 19

yes the same exception will be throw again.