Identify possible actors and use cases involved in Personal Trainer’s operations.
What will be an ideal response?
Possible actors might include Member, Instructor, Staff, and Manager. Use cases might include Add Member, Cancel Membership, Member Purchase, Track Usage, and Bill Member.
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It’s recommended that you do not explicitly create and use Thread objects to implement concurrency, but rather use the ________ interface.
a. ExecutorService b. Runnable c. Concurrent d. Executor
Select the technology that was developed by a joint effort between Netscape and Sun Microsystems.
a. Java b. JavaScript c. Flash d. Ajax
A(n) placeholder is an element in a document template into which you enter text that personalizes your document.
Answer the following statement true (T) or false (F)
Which of the following is true about stacks?
A. they are analogous to a row of books on a shelf B. items are always added to the bottom C. access is restricted to just one end D. most implementations allow access to the middle