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.

Test 2
For the next two questions, consider the execution of the following code fragment:

int I, J = 1;

for (I = 5; I >= 2; I--){

J = J - I;

}

cout << "I = " << I << endl;

cout << "J = " << J << endl;

1) What value is printed for the variable I:

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

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

2) What value is printed for the variable J:

1) 14 2) 6 3) 15 4) -12 5) -13

6) -14 7) 6 8) none of the above

Consider executing the following code fragment (assume any additional declarations, etc, needed to make the code syntactically correct):

int j = 3;

double varq = 1.5, newq = 0.0;

while (j < 47) {

newq = newq + varq;

j = j + 4;

}

3) How many times will the body of the loop be executed?

1) 11 2) 12 3) 13 4) 46 5) 47

6) none of the above

4) What is the value of newq after the last iteration of the loop?

1) 1.5 2) 16.5 3) 18.0 4) 19.5 5) 44.5

6) 269.5 7) none of the above

5) A function, someFunc, has two formal parameters, A1 of type int and B2, both of type string. The data flow (communication) for variable A1 is two-way, into and out of the function. The data flow for variable B2 is one-way, into the function. Which of the following is the most appropriate prototype for someFunc?

1) void someFunc(int A1, string B2);

2) void someFunc(int& A1, string B2);

3) void someFunc(int A1, const string& B2);

4) void someFunc(int& A1, const string& B2);

5) all of the above

6) none of the above

For the next three questions, assume the input file stream ifile is connected to a file containing the following data:

2 3 -5 5 1 -4

Consider the execution of the code fragment given in each question and determine the value that would be printed.

Choose from the following answers:

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

6) -5 7) 0 8) 18 9) none of the above

6) int sum, count, mystery, value;

ifile >> mystery;

sum = mystery;

for (count = 0; count <= mystery; count++) {

ifile >> value;

sum = sum + value;

}

cout << "sum = " << sum;

7) int sum = 0, mystery, count = 0, value;

ifile >> mystery;

sum = mystery;

do {

ifile >> value;

sum = sum + value;

count++;

} while (count < value);

cout << "sum = " << sum;

8) int sum = 0, mystery, value = 0;

ifile >> mystery;

while (value <= mystery) {

mystery++;

sum = sum + value;

ifile >> value;

}

cout << "sum = " << sum;

Consider executing the following code fragment (assume any additional declarations, etc, needed to make the code syntactically correct):

int j = 2;

while (j != 64) {

j = j * 2;

cout << j << endl;

}

9) How many times will the body of the loop be executed?

1) 4 2) 5 3) 6 4) infinite loop 5) none of the above

10) What is the last value printed?

1) 64 2) 32 3) 16 4) 19

5) 17 6) 13 7) 10 8) none of these

Consider executing the following program:

void main() {

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

for (i = 0; i < 3; i++)

for (j = 0; j < 1; j++)

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

}

11) What is the value printed on the third line of output?

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

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

Consider executing the following program:

void main() {

int i, j, sum;

sum = 0;

for (i = 0; i < 6; i=i+2) {

for (j = 0; j < 4; j=j+2)

sum = sum + i + j;

cout << sum << endl;

}

12) What is the value printed on the last line of output?

1) 0 2) 1 3) 2 4) 16 5) 18 6) 20

7) 42 8) none of the above

Assume the following declarations:

void Fix(double realvar, int& intvar );

int someInt = 12;

double someFloat = 6.28;

13) Which of the following would represent an appropriate call(s) of the function Fix?

1) Fix(6.85, 24);

2) Fix(6.85, someInt);

3) Fix(someFloat, 24);

4) Fix(someFloat, someInt+5);

5) Fix(someFloat+2.0, someInt);

6) all of the above

7) 1 and 2 only

8) 2 and 5 only

9) 2, 4 and 5 only

10) none of the above

For the next three questions, consider execution of the following program:

14) What value is printed for the variable Alpha?

1) -5 2) 15 3) 42 4) 95 5) 142

6) 999 8) None of the above

15) What value is printed for the variable Beta?

1) -5 2) 15 3) 42 4) 95 5) 142

6) 999 8) None of the above

16) What value is printed for the variable Tmp?

1) -5 2) 15 3) 42 4) 95 5) 142

6) 999 8) None of the above

17) Given the declaration

char table[7][9];

which of the following stores the character ‘B’ into the sixth column and third row of the array?

1) table[3][6] = ‘B’; 2) table[6][3] = ‘B’;

3) table[2][5] = ‘B’; 4) table[5][2] = ‘B’;

5) table[4][7] = ‘B’; 6) table[7][4] = ‘B’;

7) table[3] = ‘B’; 8) None of these

18) Given the function heading

void GetNums( int howMany,

float& alpha,

float& beta )

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

1) void GetNums( int howMany, float& alpha, float& beta );

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

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

4) 1 and 2 above

5) 1, 2, and 3 above

6) none of the above
For the next four questions, consider the incomplete function definition given below:

// CalcAverage takes an array of grades stored as integers

// and the number of values it contains, prints the grades

// and determines the average grade.

// Parameters:

// Grades[] array containing grades.

// NumOfGrades number of values stored in Grades[]

void CalcAverage(______ Grades[], ________ NumOfGrades) // Line A

{

int Sum = 0;

int LoopCounter;

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

{

Sum=Sum+________; //Line C

}

cout<<”The Grades are:”<<endl;

for(LoopCounter=0;_________;LoopCounter++) //Line D

cout<<Grades[LoopCounter]<<’\t’;

cout<<”Average = “<<_________; //Line E

}

19) How should the blank preceding the first parameter in line A be filled?

1) const int 2) int 3) int&

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

20) How should the blank preceding the second parameter in line A be filled?

1) const 2) int 3) int&

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

21) How should the blank in lines B & D be filled?

1) Sum < NumOfGrades 2) LoopCounter < NumOfGrades

3) Sum <= NumOfGrades 4) LoopCounter <= NumOfGrades

5) none of these

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

1) Sum/NumOfGrades 2) Grades[NumOfGrades]

3) Sum 4) Grades[LoopCounter]

5) Sum/LoopCounter

23) What is the output of the following program?

void main() {

int Ray[5] = {100,200,300,400,500};

int k;

for (k = 1; k < 6; k=k+2)

cout << Ray[k-1] << ‘ ’;

}

1) 100 200 300 400 500

2) 100 200 300 400

3) 500 400 300 200 100

4) 1 3 5

5) 1 2 3 4 5

6) 200 300 400

7) 100 300 500

8) none of the above

24) Given the array declaration below, what is the range of valid index values for myArray[]?

const int MAXSTUFF = 20;

char myArray[MAXSTUFF * 2];

1) 0 through 39 2) 1 through 50 3) 0 through 40

4) 1 through 51 5) 0 through 49 6) 0 through 50

7) none of these

Assume the following declarations for a program to keep track of a sporting event schedule:

const int NUMGAMES = 5;

const int NUMTEAMS = 5;

const string TEAMS[______] = { "Virginia Tech", "Miami", "Virginia",

"Syracuse", "West Virginia" };

string HomeTeam[______];

string AwayTeam[______];

string Winner[______];

25) What most appropriately fills in the blank in the declaration of TEAMS?

1) NUMGAMES 2) NUMTEAMS 3) 5 4) NUMGAMES + 1 5) NUMTEAMS + 1

6) none of the above

26) What most appropriately fills in the blank in the declaration of Winner?

1) NUMGAMES 2) NUMTEAMS 3) 5 4) NUMGAMES + 1 5) NUMTEAMS + 1

6) none of the above

27) The arrays HomeTeam, AwayTeam, and Winner are

1) parallel arrays 2) single dimensional arrays 3) multi-dimensional arrays

4) all of the above 5) 1 and 2 only 6) 1 and 3 only

7) none of the above

Assume that the following array is declared as follows:

int aMaze[MAZEHEIGHT][MAZEWIDTH];

28) Suppose a function named FindWay exists and accepts a maze as a one-way parameter into the function and returns no values. The most appropriate function prototype is:

1) void FindWay(int Maze[][MAZEWIDTH], int height, int width);

2) void FindWay(const int Maze[][MAZEWIDTH], int height, int width);

3) void FindWay(int Maze[MAZEHEIGHT][], int height, int width);

4) void FindWay(const int Maze[MAZEHEIGHT][], int height, int width);

5) void FindWay(int Maze[MAZEHEIGHT][MAZEWIDTH], int height, int width);

6) all of the above

7) none of the above

29) The maximum number of elements that can be stored in aMaze is

1) (MAZEHEIGHT – 1) * (MAZEWIDTH –1) 2) (MAZEHEIGHT – 1) * MAZEWIDTH

3) MAZEHEIGHT * (MAZEWIDTH – 1) 4) MAZEHEIGHT * MAZEWIDTH

5) (MAZEHEIGHT + 1) * (MAZEWIDTH + 1) 6) (MAZEHEIGHT + 1) * MAZEWIDTH

7) MAZEHEIGHT * (MAZEWIDTH + 1) 8) not enough information available

9) none of the above

30) Suppose the first few lines of a function are as follows:

void Calc( float beta )

{

alpha = 3.8 * beta;

Assuming the program compiles, the variable alpha is

1) a local variable

2) a global variable

3) a formal parameter

4) an actual parameter

5) none of the above

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Key:

1. 1

2. 5

3. 1

4. 2

5. 4

6. 5

7. 7

8. 9

9. 2

10. 1

11. 3

12. 5

13. 8

14. 1

15. 1

16. 2

17. 3

18. 4

19. 1

20. 2

21. 2

22. 4

23. 7

24. 1

25. 2

26. 1

27. 5

28. 2

29. 4

30. 2