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Chapter 2: Problem 13

The following data 72 'A' "Hello World" 2.8712 are all examples of A) Variables B) Literals or constants C) Strings D) None of the above

Short Answer

Expert verified
Select the appropriate option for their classification. A) Variables B) Literals or constants C) Strings D) None of the above Answer: B) Literals or constants

Step by step solution

01

Analyze the first data type - 72

72 is a whole number without any assigned identifier or variable name. It is a constant value that doesn't change.
02

Analyze the second data type - 'A'

'A' is a character enclosed in single quotes, which makes it a constant character value. It is also unchangeable without an identified variable name.
03

Analyze the third data type - "Hello World"

"Hello World" is a sequence of characters enclosed in double quotes. It is a constant string value, which does not change or have an associated variable name.
04

Analyze the fourth data type - 2.8712

2.8712 is a floating-point number. Like the other data types we've seen, it is a constant value without any assigned identifier or variable name.
05

Determine the classification of the data types

Each data type we analyzed is a constant value without any assigned variable names. They are not variable names or strings, so we can eliminate options A and C. Since they are not "none of the above," we cannot choose option D. We can thus conclude that these are examples of literals or constants, so the correct answer is option B) Literals or constants.

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Most popular questions from this chapter

include using namespace std; int main() { int freeze = 32, boil = 212; freeze = 0; boil = 100; cout … # What will the following programs print on the screen? A) #include using namespace std; int main() { int freeze = 32, boil = 212; freeze = 0; boil = 100; cout << freeze << endl << boil << endl; return 0; } B) #include using namespace std; int main() { int x = 0, y = 2; x = y * 4; cout << x << endl << y << endl; return 0; } C) #include using namespace std; int main() { cout << "I am the incredible"; cout << "computing\nmachine"; cout << "\nand I will\namaze\n"; cout << "you."; return 0; } D) #include using namespace std; int main() { cout << "Be careful\n"; cout << "This might/n be a trick "; cout << "question\n"; return 0; } E) #include using namespace std; int main() { int a, x = 23; a = x % 2; cout << x << endl << a << endl; return 0; }

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