What does “fail-safe” mean? How is it used with iterators?
What will be an ideal response?
Fail-safe refers to an iterator’s ability to detect list collection modifications while the iterator is active. Since
an iterator can access all of the members of a collection, if the collection changes while the iterator is accessing, then unknown
errors can occur. If changes to a collection occur and are detected while an iterator is active, the iterator will throw a
ConcurrentModificationException.
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You can reduce the size of electronic documents when transferring them over the Internet by using a process called _____.
A. zipping B. shrinking C. contracting D. diminishing
Write a function that counts the vowels (aeiou) in a string the user inputs. Make sure it counts upper- and lowercase vowels. Then write a routine that calls the function and displays the following output.
$ ./count_vowels.py Enter some words: Go East young man! The string "Go East young man!" has 6 vowels in it.
Both Cisco and Microsoft treat CompTIA Network+ as a prerequisite toward at least some of their own certifications.
Answer the following statement true (T) or false (F)
Which of the following programs would be used to create a website?
A. illustration B. image editor C. web authoring D. desktop publishing