Which of the following statements is false?
a. An advantage of inheritance over interfaces is that only inheritance provides the is-a relationship.
b. Objects of any subclass of a class that implements an interface can also be thought of as objects of that interface type.
c. When a method parameter is declared with a subclass or interface type, the method processes the object passed as an
argument polymorphically.
d. All objects have the methods of class Object.
a. An advantage of inheritance over interfaces is that only inheritance provides the is-a relationship.
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Which of the following operations from the ADT sorted list behave as they do in the ADT list?
a. getPosition(anEntry) b. getLength() c. removeSorted(anEntry) d. insertSorted(newEntry)
Consider the database shown in Table 7.14. What are the support and confidence values for the following negative association rules involving regular and diet soda?
The original association rule mining framework considers only presence of items together in the same transaction. There are situations in which itemsets that are infrequent may also be informative. For instance, the itemset TV, DVD, ¬ VCR suggests that many customers who buy TVs and DVDs do not buy VCRs. In this problem, you are asked to extend the association rule framework to negative itemsets (i.e., itemsets that contain both presence and absence of items). We will use the negation symbol (¬) to refer to absence of items. i. ¬Regular ?? Diet. ii. Regular ?? ¬Diet. ii. Regular ?? ¬Diet. iv. Diet ?? ¬Regular.