COMP 150 Final EXAM part 2

This operator takes an operand and reverses its truth or falsehood

!

You can use these to override the rules of operator precedence in a mathematical expression.

(parentheses)

Assume that x is an int variable. What value is assigned to x after the following assignment is executed? x=-3+4%6/5;

-3

What is the value of number after the following statements execute?

15

In the following C++ statement, what will be executed first according to the order of precedence? result=6-3*2+7-10/2;

3*2

This operator is used in C++ to represent equality

==

The __________ operator always follows the cin object, and the _____________ operator follows the cout object

>>,<<

The default section is required in a switch statement

FALSE

The following code correctly determines whether x contains a value in the range of 0 through 100. if(x>=0 && <=100)

FALSE

When a program uses the setw manipulator, the iosetwidth header file must be included in a preprocessor directive

FALSE

As a rule of style, when writing an if statement you should indent the conditionally-executed statements

TRUE

When C++ is working with an operator it strives to convert the operands to the same type. T/F

TRUE

Without this statement appearing in a switch construct, the program "falls through" all of the statements below the one with the matching case expression.

break

The _________ causes a program to wait until information is typed at the keyboard and the Enter key is pressed.

cin object

Relational operators allow you to ____________ numbers.

compare

If you intend to place a block of statements within an if statement, you must place these around the block.

curly braces{}

____________ reads a line of input including leading and embedded spaces, and stores it in a string object.

getline

In any program that uses the cin object, you must include the

iostream header file

Which statement is equivalent to the following? number +=1;

number=number+1;

The ____________ of a variable is limited to the block which it is declared

scope

This manipulator is used to establish a field width for the value immediately following it.

setw

What is the value of the following expression? false || true

true

Which statement is equivalent to the following? x=x*2;

x*=2;

Which of the following expressions will determine whether x is less than or equal to y? x>y x<=y x>=y x=<y

x<=y

This operator is known as the logical OR operator

||