Chapter 5 Study Guide

What will the following code print? num = 5; cout << num++ << " "; cout << num-- << " "; cout << --num;

5 6 4

The while loop has two important parts: a condition that is tested and a statement or block of statements that is executed

As long as the condition is true

True/False: A while loop is somewhat limited because the counter can only be incremented or decremented by one each time through the loop.

False

True/False: You can nest a for loop inside another for loop, but cannot nest a while loop inside another while loop or a do-while loop inside another do-while loop.

False

The statements in the body of a do-while loop are executed

at least once

The ________ statement causes a loop to terminate early.

break

The -- operator

can be used in either prefix or postfix mode. is a unary operator. subtracts one from the value of its operand. must have an lvalue, such as a variable, as its operand. All the above are true

A(n) ________ is a variable that is regularly incremented or decremented each time a loop iterates.

counter

The ideal type of loop to use for repeating a menu is a(n) ________ loop. 18

do-while

The ideal type of loop to use if you want a user to enter exactly 20 values is a(n) ________ loop

for

To use files in a C++ program you must include the ________ header file.

fstream

1) To ________ a value means to increase it.

increment

If nothing within a while loop ever causes the condition to become false, a(n) ________ may occur.

infinite loop

A(n) ________ is a variable that controls the number of times a loop iterates.

loop control variable

The do-while loop is a(n) ________ loop, whereas the while loop is a(n) ________ loop.

post test, pretest

A for loop is considered a(n) ________ loop.

pretest

A(n) ________ is a special value that marks the end of a list of values.

sentinel

In order for a C++ program to read data from a file,

the file must already exist. the program must open the file. the program must define a file stream object that can "point to" (i.e., reference) the file. All of the above are required..

If a while loop has no braces around the body of the loop

the loop body contains just one statement

True/False: When a loop is nested inside another loop, the inner loop goes through all its iterations for each iteration of the outer loop.

true