When a derived-class member overrides a base-class member, the base-class member can be accessed from the derived-class by using the Visual Basic keyword .
a) MyBase
b) Top
c) Super
d) None of the above
a) MyBase
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Overloaded operators are often used in searching a linked list because:
A. they are much faster than regular operators B. struct objects are never used as elements C. struct objects are often used as elements in a linked list, and the client chooses what type of struct to use D. addition of struct objects, used as elements, is often used in the search
The Windows graphical user interface incorporates ____________________ and software.
Fill in the blank(s) with the appropriate word(s).
Client/server architecture does involve performance issues that relate to the separation of server-based data and networked clients that must access the data.
Answer the following statement true (T) or false (F)
For the original product evaluation scheme, the overall rankings of each product variation are found by computing its average over all test sub- jects. Comment on whether you think that this is a reasonable ap- proach. What other approaches might you take?
A few months later, you are again approached by the same marketing director as in Exercise 3. This time, he has devised a better approach to measure the extent to which a customer prefers one product over other, similar products. He explains, “When we develop new products, we typically create several variations and evaluate which one customers prefer. Our standard procedure is to give our test subjects all of the product variations at one time and then 7 ask them to rank the product variations in order of preference. However, our test subjects are very indecisive, especially when there are more than two products. As a result, testing takes forever. I suggested that we perform the comparisons in pairs and then use these comparisons to get the rankings. Thus, if we have three product variations, we have the customers compare variations 1 and 2, then 2 and 3, and finally 3 and 1. Our testing time with my new procedure is a third of what it was for the old procedure, but the employees conducting the tests complain that they cannot come up with a consistent ranking from the results. And my boss wants the latest product evaluations, yesterday. I should also mention that he was the person who came up with the old product evaluation approach. Can you help me?”