2. Provide the output of the following code snippets exactly as it would appear

Question

2. Provide the output of the following code snippets exactly as it would appear on the console. If there are multiple spaces, denote the number of spaces below your answer. (Assume the appropriate libraries are included.)

a. int j = 2, number = 1;

switch (j)

{ case 1: number *= 3;

case 2: number += 2;

case 3: number *= number;

default: number--;

break;

}

cout << number << " ";

b. cout << 2 * 4 / 3;

c. string s = "3";

int t = 3;

cout << s + s << 3 + 3 << " 3 + 3 " << t + t;

d. double number = 23.325;

cout << fixed; cout << setprecision(2); cout << number;

e. double number = 23.325; //cout << fixed; cout << setprecision(2);

cout << number; f. cout << setw(5) << left << "left" << "." << setw(6) << right << "right";

g. string book = "Catch-22";

book.erase(2, 3);

cout << book;

h. cout << "\ "";

i. for (int m = 2; m <= 15; m += 3)

{ cout << m << " "; }

j. int loop_count = 0;

for (int j = 0; j <= 100; j++)

{ loop_count++; }

cout << loop_count;

k. int x = 0, y = 0, loop_count = 0;

while (x < 5)

{ while (y < 5) { loop_count++; }

x++; y = 0; }

cout << loop_count;

Explanation / Answer

a. int j = 2, number = 1;
switch (j)
{ case 1: number *= 3;
case 2: number += 2;
case 3: number *= number;
default: number--;
break;
}
cout << number << " ";

a) 8

answer will be 8 as no breaks are used

b)cout << 2 * 4 / 3

b) 2

answer will be 2 (8/3 = 2)

c. string s = "3";
int t = 3;
cout << s + s << 3 + 3 << " 3 + 3 " << t + t;

c) 336 3 + 3 6

d. double number = 23.325;
cout << fixed; cout << setprecision(2); cout << number;

d) 23.32

fixed 2 decimal points

e. double number = 23.325; //cout << fixed; cout << setprecision(2);
cout << number;

e) 23.325

f) cout << setw(5) << left << "left" << "." << setw(6) << right << "right";

f) left . right

Related Questions

Navigate

• Browse (All)
• Browse 2
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.