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- In the following code fragment, the Boolean expression in the
if statement contains an assignment. What output is produced?
bool choose = FALSE ;
if ( choose = TRUE ) {
printf("Loose it in a river\n") ;
} else if (choose) {
printf("Toss it in a volcano\n") ;
} else {
printf("Wear it on your finger\n") ;
}
a. Loose it in a river
b. Toss it in a volcano
c. Wear it on your finger
d. No output is produced
Your answer:
- Which of the given expressions is equivalent to the
following expression for all values of the integer
variables elf and man ?
(elf == 3) && (man == 9)
a. !( (elf != 3) || (man != 9) )
b. !( (elf != 3) && (man != 9) )
c. ( (elf != 3) || (man != 9) )
d. ( (elf == 3) || (man == 9) )
Your answer:
- According to the rules of short circuit evaluation, after the
following code fragment is executed
bool flag = FALSE ;
int a = 1 ;
flag = (a > 1) || ( a++ > 4 ) ;
flag = flag || ( a++ > 1 ) ;
a. flag is TRUE and a is 1.
b. flag is TRUE and a is 2.
c. flag is TRUE and a is 3.
d. flag is FALSE and a is 1.
Your answer:
- After the declaration:
typedef struct tag {
int height ;
double weight ;
double wealth ;
} dwarf ;
a. dwarf is a new data type which can be used
to declare variables as pointers to a record.
b. dwarf is a new data type which can be used
to declare variables as records.
c. dwarf is a variable which can hold a pointer
to a record.
d. dwarf is a variable which can hold a record.
Your answer:
- What is the value of the following expression?
13 % 9 - 7 / 3 - 1
a. 0
b. 1
c. 2
d. 3
Your answer:
- What is the output of the following code fragment?
int n = 2, m = 3, *p ;
p = &n ;
*p = n + m ;
p = &m ;
m = *p - n ;
printf("%d %d %d\n", n, m, *p) ;
a. 2 3 5
b. 2 5 5
c. 5 0 5
d. 5 -2 -2
Your answer:
- Which of the following is a function prototype of a function
that takes two parameters of type pointer to integer and
does not return any value.
a. void f (int, int) ;
b. int *f (void, void) ;
c. void f (int *, int *) ;
d. f(void, int *, int *) ;
Your answer:
- One purpose of a header file is to
a. provide type declarations and function prototypes needed
to use a library.
b. make sure that the main program is not compiled twice.
c. hide static global variables from the main program.
d. all of the above.
Your answer:
- When an array parameter is passed to a function
a. the elements of the actual array parameter are copied
into the elements of the formal array parameter.
b. the elements of the formal array parameter are copied
into the elements of the actual array parameter.
c. the formal parameter is a pointer that holds the address
of the actual array parameter.
d. the programmer must write code which allocates
enough space for the function to store the array.
Your answer:
- What is the output of the following code fragment?
int a = 7, b = 13 ;
a = b++ ;
b = ++a ;
printf("a = %d, b = %d\n", a, b) ;
a. a = 13, b = 14
b. a = 14, b = 14
c. a = 14, b = 15
d. a = 15, b = 15
Your answer:
- What is the output of the following code fragment?
int start, stop ;
string data ;
data = "There and back again" ;
start = stop = 6 ;
while ( !isspace(IthChar(data,stop)) ) {
stop ++ ;
}
printf("%s\n", SubString(data,start,stop-1) ) ;
a. and
b. and back again
c. There and back again
d. No output is produced
Your answer:
- What is the effect of the following loop?
int i = 0 ;
while (TRUE) {
if (i > 15) break ;
i = i + 3 ;
printf("%d ", i) ;
}
a. It prints out multiples of 3 from 0 to 12 (inclusive).
b. It prints out multiples of 3 from 3 to 12 (inclusive).
c. It prints out multiples of 3 from 3 to 15 (inclusive).
d. It prints out multiples of 3 from 3 to 18 (inclusive).
Your answer:
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