C++

C++

1. Name three principles of Object Oriented Programming.

2. What is the difference between public and private data members?

3. Name two rules to remember when defining a constructor.

4. When is a constructor called?

5. What is the default constructor?

6. Why would it be incorrect to add the modifier const to the declaration for a member function input()?

7. What are the differences and similarities between a call-by-value parameter and a constant call-by-

reference parameter?

8. When would you use an inline function definition?

9. When would you use a static variable?

10. How does a vector differ from an array?

11. Why would you want to overload operators?

12. How is a friend function different from an ordinary function?

13. Which of the following can be overloaded? []     <<      >>     -      ++

14. When overloading an operator, at least one parameter (one operand) of the resulting overloaded operator

must be what?

15. A C-string is the same thing as an array of _____________________.

16. A string variable uses __________________ to mark the end of the string stored in the array.

17. Can you assign a C-string value to a C-string variable using the assignment operator? ______(yes or no )

18. Can you compare the value in two C-string variables using the == operator? _____(yes or no)

19. What does the function cin.get do?

20. What function do you use to read a whole line of characters?

21. Which of the following are equivalent?

char stringVar[10] = “Hello”;

char stringVar[10] = { ‘H’, ‘e’, ‘l’, ‘l’, ‘o’, ‘\0’};

char stringVar[10] =  = { ‘H’, ‘e’, ‘l’, ‘l’, ‘o’};

char stringVar[6] = “Hello”;

char stringVar[] = “Hello”;

 

22. What C-string will be stored in singingString after the following code is run? Assume that the code is

embedded in a complete program

char singingString[20] = “DoBeDo”;

strcat(singingString, “ to you”); 

 

23. What is the length (maximum) of a string that can be placed in the string variable declared by the following

declaration?

char s[6];

 

24. What string will be output when this code is run? (Assume that this code is embedded in a complete

program)

 

char song[10] = “I did it ”;

char franksSong[20];

strcpy (franksSong, song);

strcat(franksSong, “my way!”);

cout << franksSong << endl;

 

25. Declare p to be a pointer variable that can hold one pointer that points to a variable of type double.

26. Set the value of p that was declared in question #25 so that p points to the variable v.

27. Assign the value of pointer variable p1 to the pointer variable p2.

28. What is a dynamic variable?

29. What do you call an array whose size is determined when the program is running?

30. Write the code to destroy a dynamic variable p and return the memory it was using to the freestore?

31. What is the correct syntax for the destructor for MyClass ?