Preparation for Final Exam mcq Quiz big - Попытка 1

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Question21

Баллов: 1

What gets printed for the value of z?

#include <iostream>

struct Foo{Foo(int n) : x(n++), y(n++), z(n++) {}int x;int y;int z;};

int main(int argc, char** argv){Foo f(3);

std::cout << "x: " << f.x << std::endl;std::cout << "y: " << f.y << std::endl;std::cout << "z: " << f.z << std::endl;

return 0;}

Выберите один ответ.

	a. code is ill-formed
	b. 4
	c. 5
	d. 3

Question22

Баллов: 1

Find the error(s) in the following and correct it (them).The following is a partial definition of class Time:

class Time{public:// function prototypesprivate:int hour = 0;int minute = 0;int second = 0;}; // end class Time

Выберите один ответ.

	a. class Time {public:// function prototypesprivate:hour = 0;minute = 0;second = 0;}; // end class Time
	b. class Time{public:// function prototypesTime (int my_hour, int my_minute, int my_second){hour=my_hour;minute=my_minute; second=my_second;}private:int hour;int minute;int second;}; // end class Time
	c. no errors

Question23

Баллов: 1

All programs can be written in terms of three types of control structures:.

Question24

Баллов: 1

Find the error(s) in the following code segment. The following code should print the values 1 to 10: n = 1; while ( n < 10 ) 

cout << n++ << endl;

Выберите один ответ.

	a. n = 1; while ( n <=11 )  cout << n++ << endl;
	b. n = 1; while ( n < 11 )  cout << n++ << endl;
	c. n = 1; while ( n <= 10 )  cout << ++n << endl;

Question25

Баллов: 1

All arguments to function calls in C++ are passed by value

Ответ:

TrueFalse

Question26

Баллов: 1

What is the output of the program?

#include<iostream>

usingnamespace std;

int main() {

 int a = 1;

 do {

 a+=1;

 cout << a;

 } while (a<5);

 return 0;

}

Выберите один ответ.

	a. 1234
	b. 23456
	c. 2345
	d. 12345
	e. 123456

Question27

Баллов: 1

Predecrement the variable x by 1, then subtract it from the variable total

Выберите один ответ.

	a. total = --x;
	b. total -= x--;
	c. total -= ++x;
	d. total -= --x;
	e. total -= x++-;

Question28

Баллов: 1

A function that calls itself either directly or indirectly (i.e., through another function) is a ( n ) ________ function

Выберите один ответ.

	a. recursive
	b. special
	c. not sure
	d. repetition
	e. loop

Question29

Баллов: 1

Find the error(s) in the following and correct it (them).Assume the following prototype is declared in class Employee:int Employee( const char *, const char * );

Выберите один ответ.

	a. int Employee( const char *, const char * );
	b. Employee( const char *, const char * );
	c. Employee( const char , const char );

Question30

Баллов: 1

Find the error in the following program segment. Assume the following declarations and statements:int *zPtr; // zPtr will reference array zint *aPtr = 0;void *sPtr = 0;int number;int z[ 5 ] = { 1, 2, 3, 4, 5 };// assign the value pointed to by sPtr to numbernumber = *sPtr;

Выберите один ответ.

	a. number = *static_cast< int * >( sPtr );
	b. number = sPtr;
	c. number = *sPtr;

 

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