31. The purpose of the \" ? : \" operator is to: a. select the highest of the tw

Question

31. The purpose of the " ? : " operator is to:

a. select the highest of the two values
b. select the more equal of two values
c. select one of two values alternately
d. select one of two values depending on a condition
e. none of the above

32. The statements following else in an if-else construction are executed when

a. the conditional expression following if is false
b. the conditional expression following if is true

33. It is possible to print decimal-point-aligned
financial data using cout using the sprintf() function. (T/F).

34. A non-static global variable may be altered
by functions which are declared in any source file
included in the project. (T/F)

35. A static function may only be called by
functions which are defined in the same
source file. (T/F)

36. A static int variable is allocated only
once in the run of the program, and keeps its
value between calls of the function in which
it is defined. (T/F)

37. C variables declared inside a function {}
are visible only to the calling routine. (T/F)

38. Given:
main(int argc, char *argv[], char ** env)

argv[0] is local only to main, and may not be directly
seen or used by any other function. (T/F)

39. static_cast<double>() is most similar to:

a. (double *)
b. (char *)
c. (int)
d. (double)
e. none of these

40. Given: int a = 8 , b = 9 ;
in order to get an accurate quotient, you must do:

a. cout << a / b ;
b. cout << (double) a / b ;
c. cout << (double) (a / b) ;
d. b or c above.
e. they all produce an accurate answer.

Explanation / Answer

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31. The purpose of the " ? : " operator is to:

a. select the highest of the two values
b. select the more equal of two values
c. select one of two values alternately
d. select one of two values depending on a condition
e. none of the above

32. The statements following else in an if-else construction are executed when

a. the conditional expression following if is false
b. the conditional expression following if is true

33. It is possible to print decimal-point-aligned
financial data using cout using the sprintf() function. (T/F).

34. A non-static global variable may be altered
by functions which are declared in any source file
included in the project. (T/F)

35. A static function may only be called by
functions which are defined in the same
source file. (T/F)

36. A static int variable is allocated only
once in the run of the program, and keeps its
value between calls of the function in which
it is defined. (T/F)

37. C variables declared inside a function {}
are visible only to the calling routine. (T/F)

38. Given:
main(int argc, char *argv[], char ** env)

argv[0] is local only to main, and may not be directly
seen or used by any other function. (T/F)

39. static_cast<double>() is most similar to:

a. (double *)
b. (char *)
c. (int)
d. (double)
e. none of these

40. Given: int a = 8 , b = 9 ;
in order to get an accurate quotient, you must do:

a. cout << a / b ;
b. cout << (double) a / b ;
c. cout << (double) (a / b) ;
d. b or c above.
e. they all produce an accurate answer.

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