cpp quiz

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1. What function initalizes variables in a class:

ConstructorDestructorConstitutorA and B are correct.

2. To include code from the library in the program, such as iostream, a directive would be called up using this command.

#include <>; with iostream.h inside the bracketsinclude (iostreamh)#include <> with iostream.h inside the bracketsinclude #iostream,h;

3. Single line comments explaining code would be preceded like in the followingexample

/**

//*///*

4. Which line has all reserved words ?

char, int, float, doubled, short, long, unsigned, signedsizeof, const, typedef, static, voided, enum, struct, unionif, else, for, while do, switch, continue, breakdefaulted, goto, return, extern, private, public, protected

5. What punctuation must each command line have at the end of the line ?

:,!;

6. The C++ language is

case-sensitive.Not case-sensitive.It dependsNone of these

7. The number 5.9875e17 must be stored in a(n):

intlongdoublefloat

8. Select the correct definition for a string variable.

string mystr;string mystr[20];string[20] mystr;char mystr[20];

9. The sentence "Hello world!" uses _____ elements in a character array.



10111213

10. When you are creating a structure, you need to use the following keyword

structurestructobjectrecord

11. Select the correct function definition (NOT prototype) from the list below.

void intro();double sin(double rad);int foo(int bar; double baz)double pow(double num, int pow);

12. Cout can print multiple values or variables in a single command using the following syntax:

cout << "Hi" + bob + "\n";cout << "Hi" << bob << "\n";cout << "Hi", bob, "\n";cout << ("Hi" & bob & "\n");

13. Write a for loop that counts from 0 to 5.

for (c = 0; c <= 5; c++)for (int c = 0; c <= 6; c++)for (c = 0; c < 5; c++)

for (c = 0; c < 5; c++);

14. What does the statement #include do ?

It defines the function iostream.hIt tells the compiler where the program beginsIt defines the words TRUE and FALSEIt allows the programmer to use cout << It defines the statement return

15. Which of the following converts an integer "value" to its ASCII equivalent ?

atoi(value)

cout << value(char) valuechar (value)

16. Indicate which data type is not part of standard C++.

boolintrealdouble

17. Which one of the choices would produce the following output ?

cout << "Hello" << "World";cout << "Hello \n World";cout << "Hello World\n";



cin >> "Hello World";

18. What is the output of the following code?for (int i=0; i<10; i++); cout << i%2 << " "; }

0 1 2 3 4 5 6 7 8 90 2 4 6 8 10 12 14 16 18

1 0 1 0 1 0 1 0 1 00 1 0 1 0 1 0 1 0 1

19. What is the output of the following code?for (int a = 1; a <= 1; a++) cout << a++; cout << a;

2212error23

20. For which values of the integer _value will the following code become an inf

inite loop?int number=1;while (true) {cout << number;if (number == 3) break;number += _value; }

only 0only 1only 2only 1 or 2

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