CS Quiz 2

Consider the following code. // Insertion Point 1 using namespace std; const float PI = 3.14; int main() { //Insertion Point 2 float r = 2.0; float area; area = PI * r * r; cout << "Area = " << area <<endl; return 0; } // Insertion Point 3 In this code, where does the include statement belong?

Insertion Point 1

Which of the following is a legal identifier?

program_1

The ___ rules of a programming language tell you which statements are legal, or accepted by the programming language

syntax

A comma is also called a statement terminator.

False

An operator that has only one operand is called a unique operator.

False

In C++, reserved words are the same as predefined identifiers

False

The escape sequence \r moves the insertion point to the beginning of the next line

False

Suppose that a = 5. After the execution of the statement ++a; the value of a is 6

True

Which of the following is the newline character?

\n

___ is a valid char value

'A'

Suppose that count is an int variable and count = 1. After the statement count++; executes, the value of count is ___

2

The value of the expression 17 % 7 is ___

3

The value of the expression 33/10, assuming both values are integral data types, is ___

3

___ is a valid int value

46259

The expression static_cast<int>(9.9) evaluates to ___

9

Suppose that alpha and beta are int variables and alpha = 5 and beta = 10. After the statement alpha *= beta; executes, ___

alpha = 50

Suppose that alpha and beta are int variables. The statement alpha = ++beta; is equivalent to the statement(s) ___

alpha = beta

Suppose that alpha and beta are int variables. The statement alpha = beta--; is equivalent to the statement(s) ___

beta = beta -1;

Which of the following is a reserved word in C++?

char

An example of a floating point data type is ___

double