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Exam 6: Looping

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Question 1

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A(n) ____ loop is a special loop that is used when a definite number of loop iterations is required.

A) while
B) for
C) else
D) do…while

E) B) and C)
F) B) and D)

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Question 2

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A for loop provides a convenient way to create a(n) ____ loop.

A) counter-controlled
B) posttest
C) while
D) infinite

E) All of the above
F) A) and B)

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Question 3

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Match each term with the correct statement below.

As long as methods do not depend on one another, ____ is a technique that can improve loop performance by combining two loops into one.

The ____ loop checks the value of the loop control variable at the bottom of the loop after one repetition has occurred.

A loop controlled by the user is a type of ____ loop.

while(count Examine the statement above. Write the code that will result in more efficient program execution assuming the result of getNumberOfEmployees() stays the same.

A statement that will alter the value of the loop control variable is included in the body of a loop.

A ____ is a structure that allows repeated execution of a block of statements.

Altering a variable within both a for statement and within the block it controls can produce errors that are difficult to find.

The statements that make up a loop body will continue to execute as long as the expression value remains false.

Which is an infinite loop?

Before entering a loop, the first input statement, or ____, is retrieved.

What would happen if a semicolon is mistakenly placed at the end of a partial statement of a while loop with a Boolean expression and with an empty body?

Why would a loop with altered user input be considered a type of indefinite loop? Give an example.

In order to improve loop performance, it's important to make sure the loop does not include unnecessary operations or statements.

When you want to increase a variable's value by exactly 1, use the ____.

It is important that the loop control ____ be altered within the body of the loop.

How could a programmer identify and escape from an infinite loop?

____ is the process of ensuring that a value falls within a specified range.