Code FORM A and GROUP I on your opscan. Remember to fill in your SOCIAL SECURITY NUMBER on your opscan. All variables are default typed unless otherwise noted.

For the next 2 questions consider the execution of the following program:

(Hint – trace the program carefully.)

void main()

{

int LoopCounter, Count=0;

for (LoopCounter = 0; LoopCounter < 10; LoopCounter++)

{

LoopCounter++;

Count++;

}

cout << LoopCounter;

cout << Count;

}

1) What value is printed for the variable LoopCounter:

1) 1 2) 2 3) 3 4) 4 5) 5

6) 6 7) 0 8)10 9) none of the above

2) What value is printed for the variable Count:

1) 1 2) 2 3) 3 4) 4 5) 5

6) 6 7) 0 8)10 9) none of the above

Consider executing the following program:

void main ()

{

int i, j, count=0, Answer;

Answer = 1;

for (i = 1; i < 3; i=i+1) {

for (j = 1; j < 5; j=j+2){

count++;

Answer = Answer * i * j;

}

cout << Answer << endl << count << endl;

}

3) What value is printed for the variable Answer:

1) 0 2) 1 3) 2 4) 15 5) 18 6) 36

7) 72 8) none of the above

4) What value is printed for the variable count :

1) 0 2) 1 3) 2 4) 15 5) 18 6) 36

7) 72 8) none of the above

void main()

{

int Count = 0;

int number = 2;

bool done = false;

while (!done)

{

Count++;

number = number * 2;

done = (number > 64);

}

cout << Count << endl;

}

5) What is printed out when the above code is executed?

1) 1 2) 2 3) 3 4) 4 5) 5

6) 6 7) 0 8)10 9) none of the above

void main()

{

int i=1, sum, j;

while (i <= 5)

{

sum = 0;

j = 1;

while (j<=i)

{

sum = sum + j;

j++;

}

i++;

}

cout << sum << endl;

}

6) What is printed out for sum when the above code is executed?

1) 0 2) 1 3) 5 4) 14 5) 15

6) none of the above

void main() {

int i, j, A[2][4] = {1,2,3,4,5,6,7,8};

for (i = 0; i < 4; i++)

for (j = 0; j < 2; j++)

cout << A[j][i] << endl;

}

7) What is the value printed on the fifth line of output?

1) 1 2) 2 3) 3 4) 4 5) 5 6) 6

7) 7 8) 8 9) none of the above

For the next 2 questions consider the following code:

void main ()

{

int Value1 = 1;

int Value2 = 3;

Mystery (Value1, Value2);

cout << Value1<< ‘ ‘ << Value2 << endl;

}

void Mystery (int Param1, int& Param2)

{

Param1 = Param1 * 5;

Param2 = Param2 * 2;

}

8) What is printed out for Value1?

1) 1 2) 2 3) 3 4) 4 5) 5

6) 6 7) 0 8)10 9) none of the above

9) What is printed out for Value2?

1) 1 2) 2 3) 3 4) 4 5) 5

6) 6 7) 0 8)10 9) none of the above

10) Given the function heading

int FindIt( int& howMany,

float& alpha,

float beta )

which of the following is a valid function prototype for FindIt?

1) int FindIt( int& howMany, float& alpha, float beta );

2) void FindIt( int&, float&, float );

3) int FindIt( int, float&, float& );

4) 1 and 2 above

5) 1, 2, and 3 above

_______________________________________________________________________________________

11) Consider the function definition

void DoThis( int& alpha,

int beta )

{

int temp;

alpha = alpha + 100;

temp = beta;

beta = 999;

}

Suppose that the caller has integer variables gamma and delta whose values are 10 and 20, respectively. What are the values of gamma and delta after return from the following function call?

DoThis(gamma,delta);

1) gamma = 10 and delta = 20

2) gamma = 110 and delta = 20

3) gamma = 10 and delta = 999

4) gamma = 110 and delta = 999

5) none of the above

_______________________________________________________________________________________

12) What is the output of the following code fragment? (All variables are of type int.)

int alpha, beta;

alpha = 3;

beta = 20;

if (beta > 10)

{

int alpha = 5;

beta = beta + alpha;

cout << alpha << ' ' << beta << endl;

}

cout << alpha << ' ' << beta << endl;

1) 3 20

2) 3 25

3 25

3) 5 25

5 25

4) 5 25

3 25

5) 5 25

3 20

13) What is the output of the following code fragment if the input value is 4? (Be careful here.)

int num;

int alpha = 10;

cin >> num;

switch (num)

{

case 3 : alpha++;

case 4 : alpha = alpha + 2;

case 8 : alpha = alpha + 3;

default : alpha = alpha + 4;

}

cout << alpha << endl;

1) 10 2) 14 3) 12 4) 19 5) 15

14) What is the output of the following code fragment? (beta is of type int.)

beta = 5;

{

switch (beta)

{

case 1 : cout << 'R';

break;

case 2 :

case 4 : cout << 'O';

break;

case 5 : cout << 'L';

}

beta--;

} while (beta > 1);

cout << 'X' << endl;

1) X 2) ROOLX 3) LOOX 4) LOORX 5) ROOX

15) Which of the loops below produces the same number of loop iterations as the following loop?
(count is of type int)

for (count = 1; count <= 10; count++)

DoSomething();

1) for (count = 10; count >= 1; count--)

DoSomething();

2) for (count = 0; count < 10; count++)

DoSomething();

3) for (count = 10; count >= 0; count--)

DoSomething();

4) 1 and 2 above

5) 1, 2, and 3 above

16) What is the content of the array arr after the for loop?

int arr[5];

int j = 0;

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

{

arr[i] = i+j;

j = j + 1;

}

1) 0 1 2 3 4 3) 0 2 4 6 8

2) 1 2 3 4 5 4) 1 3 5 7 9

For the next 5 questions, consider the incomplete function definition given below:

// CountAs takes an array of characters and count the number of times

// the character ‘A’ appears in the list.

// Parameters:

// CharacterList[] array containing characters.

// NumOfCharacters number of characters to check

// TotalA number of As in the array

void CountAs( char _________, int NumOfCharacters, int& TotalA)// Line A

{

int LoopCounter;

for(LoopCounter=0;________;LoopCounter++) //Line B

{

if ( _________ == 'A') //Line C

TotalA=TotalA+________; //Line D

}

cout<<"The number of 'A's is = "<<_________; //Line E

}

17) How should the blank for the first parameter in line A be filled?

1) CharacterList 2) CharacterList[] 3) ‘A’

4) it should be left blank 5) none of these

18) How should the blank in line B be filled?

1) LoopCounter < 100 2) LoopCounter <= NumOfCharacters

3) LoopCounter <= 100 4) LoopCounter < NumOfCharacters

5) none of these

19) How should the blank in line C be filled?

1) CharacterList[NumOfCharacters] 2) CharacterList[LoopCounter]

3) LoopCounter 4) none of these

5) NumOfCharacters

20) How should the blank in line D be filled?

1) 1 2) CharacterList

3) LoopCounter 4) none of these

5) NumOfCharacters

21) How should the blank in line E be filled?

1) TotalA 2) CharacterList[LoopCounter]

3) LoopCount 4) none of these

5) NumOfCharacters

Consider the following code:

void silly (int);

int main()

{

int x,y;

// do something silly

x=10;

y=11;

silly(x);

silly(y); // values here

return 0;

}

void silly (int x)

{ int y;

y = x + 2;

x = x * 2;

} // end silly

22) What are the values of main function variables x and y at the point marked // values here?

1) x=10 and y=11 2) x=20 and y=22

3) x=11 and y=10 4) x=40 and y=11

5) x=20 and y=12 6) x=40 and y=14

23) What are the values of the main function’s variables x and y if x was passed by reference to the silly function at the point marked // values here?

1) x=10 and y=11 2) x=20 and y=22

3) x=11 and y=10 4) x=40 and y=11

5) x=20 and y=12 6) x=40 and y=14

For the next 3 questions consider the following code:

for (int i=1; i<10; i++)

{

for (int j=0; j<=i; j++)

cout << setw (4) << (i + j); //first

cout << endl; //second

}

24) How many times does the first cout statement execute?

1) 100 2) 56

3) 10 4) 55

5) 11 6) cannot be determined

25) How many times does the second cout statement execute?

1) 100 2) 56

3) 10 4) 55

5) 11 6) cannot be determined

26) What is the last value displayed?

1) 10 2) 19

3) 11 4) 20

5) 18 6) none of the above

Consider the following code:

int main()

{

int x[8]; // line 1

for (int i=0;i<9;i++) // line 2

x[i] = i; // line 3

return 0; // line 4

}

27) Which line of code should be changed to prevent a possible runtime error in the program?

1) 1 2) 2 3) 3 4) 4

5) either 1 or 2 6) either 1 or 3 7) either 2 or 3 8) either 1 or 4

num = 345;

{

cout << ' ' << num % 10;

num = num /10;

} while (num > 0);

28) What does the above code segment display?

1) 5 .5 0 2) 3 4 5

3) .5 0 0 4) 5 4 3

5) 34.5 3.45 .345 6) none of the above

int X; // 1

void main() {

int Y; // 2

while(Y < 10) {

int X = 0; // 3

X++;

Y = Y + X;

}

cout << X << endl;

}

29) Choose the correct statement about the above code:

1) The lifetime of the variable X in declaration 1 is the entire execution of the program.

2) The variable X in declaration 3 is initialized to 0 during each iteration of the while loop.

3) The scope of the variable X in declaration 1 is the entire body of main() except for the while loop.

4) The variable Y in declaration 2 should be initialized; otherwise , the content of Y is unpredictable.

5) All of the above.

6) None of the above.

30) Choose the correct statement about parameter passing by value:

1) Actual and formal parameters must be of similar types.

2) Formal parameters must be declared as local variables in the function body.

3) Actual parameters in a function call cannot be constants or expressions; they must be variables.

4) Parameter passing by value can be used both for input and output communication purposes.

5) All of the above are correct.

6) None of the above is correct.