CSCI 1380 Chapter 2

alpha = beta; beta = beta - 1;

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

2

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

False

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

13

The expression static_cast<int>(6.9) + static_cast<int>(7.9) evaluates to ____.

9

The expression static_cast<int>(9.9) evaluates to ____.

16

The length of the string "computer science" is ____.

True

The maximum number of significant digits in float values is up to 6 or 7.

True

The maximum number of significant digits in values of the double type is 15.

False

A comma is also called a statement terminator.

Sunny Day

Choose the output of the following C++ statement: cout << "Sunny " << '\n' << "Day " << endl;

False

A mixed arithmetic expression contains all operands of the same type.

double

An example of a floating point data type is ____.

one = 10.5, two = 30.6

In a C++ program, one and two are double variables and input values are 10.5 and 30.6. After the statement cin >> one >> two; executes, ____.

alpha = beta; beta = beta + 1;

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

sum = 15

Suppose that sum and num are int variables and sum = 5 and num = 10. After the statement sum += num executes, ____.

True

Suppose that sum is an int variable. The statement sum += 7; is equivalent to the statement sum = sum + 7;

four

The memory allocated for a float value is ____ bytes.

True

If a C++ arithmetic expression has no parentheses, operators are evaluated from left to right.

False

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

Insertion Point 1

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?

True

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

alpha = 50

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

beta = beta - 1; alpha = beta;

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

syntax

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

3

The value of the expression 17 % 7 is ____.

3

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

program_1

Which of the following is a legal identifier?

\n

Which of the following is the newline character?

'A'

____ is a valid char value.

46259

____ is a valid int value.