devry comp122 week 2 homework

COMP122

Week 2 Homework

Complete the following problems.

1. Suppose you are given the following variable declarations:

int x, y;

char ch;

What values (if any) are assigned to x, y, and ch after each of these statements execute?

Assume that the input to each statement is the same: 5 28 36

a. cin >> x >> y >> ch;

b. cin >> ch >> x >> y;

c. cin >> x >> ch >> y;

d. cin >> x >> y;

cin.get(ch);

2. Suppose you are given the following variable declarations:

int x, y;

char ch;

What values (if any) are assigned to x, y, and ch after each of these statements execute?

Assume that the input to each set of statements is as follows:

13 28 D

14 E 98

A B 56

a. cin >> x >> y;

cin.ignore(50, ‘\n’);

cin >> ch;

b. cin >> x;

cin.ignore(50, ‘\n’);

cin >> y;

cin.ignore(50, ‘\n’);

cin.get(ch);

3. Suppose you are given the following variable declarations:

int x, y;

double z;

char ch;

Assume you have the following input statement:

cin >> x >> y >> ch >> z;

What values (if any) are stored in x, y, z, and ch if the input is:

a. 35 62. 78

b. 86 32A 92.6

c. 12 .45A 32

4. Write a C++ statement that uses the manipulator ‘setfill’ to output a line containing 35 asterisk characters.

5. What is the output from the following statements?

a. if ( 60 <= 12 * 5)

cout << “Hello”;

cout << ” There”;

b. if (‘a’ > ‘b’ || 66 > static_cast<int>(‘A’))

cout << “#*#” << endl;

c. if (7 <= 7)

cout << 6 – 9 * 2 / 6 << endl;

d. if (7 < 8)

{

cout << “2 4 6 8” << endl;

cout << “1 3 5 7” << endl;

}

e. if (5 < 3)

cout << “*”;

else if (7 == 8)

cout << “&”;

else

cout << “$”;

6. Suppose that you have the following variable declarations:

int x = 10;

int y = 15;

int z = 20;

Determine whether the following expressions are true or false.

a. !(x < 10)

b. x <= 5 || y > 15

c. (x != 5) && (y == z)

d. x <= z && (x + y >= z)

7. What is the output of the following code fragment?

int x = 100;

int y = 200;

if (x > 100 && y <= 200)

cout << x << ” ” << y << ” ” << x + y << endl;

else

cout << x << ” ” << y << ” ” << 2 * x – y << endl;

8. Given a char variable called gender, write C++ statements to output “Male” if gender contains upper or lower case M, “Female” if it contains upper or lower case F, or “Invalid Gender” if it contains anything else. Use if / else if statements.

9. Given a char variable called gender, write C++ statements to out “Male” if gender contains upper or lower case M, “Female” if it contains upper or lower case F, or “Invalid Gender” if it contains anything else. Use a switch statement.

10. What is the value of the beta variable after the following code executes?

int beta = 3;

switch(beta)

{

case 3:

beta += 3;

case 1:

beta++;

break;

case 5:

beta += 5;

case 4:

beta += 4;

}

Our website has a team of professional writers who can help you write any of your homework. They will write your papers from scratch. We also have a team of editors just to make sure all papers are of HIGH QUALITY & PLAGIARISM FREE. To make an Order you only need to click Ask A Question and we will direct you to our Order Page at WriteDemy. Then fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.