Candidate keys that are used for the primary key are alternate keys
Indicate whether the statement is true or false
FALSE
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A list method void add(int index, E x) seeking to add an element x that is an object of a class E to a list, should throw an IndexOutOfBoundsException when
A) the index is negative, or greater than the size of the list B) the index is negative, or greater than, or equal to, the size of the list C) the index is greater than or equal to the size of the list D) The element x falls outside of the bounds specified by the index
Which of the following statements are true?
a. To override a method, the method must be defined in the subclass using the same signature and compatible return type as in its superclass. b. Overloading a method is to provide more than one method with the same name but with different signatures to distinguish them. c. It is a compile error if two methods differ only in return type in the same class. d. A private method cannot be overridden. If a method defined in a subclass is private in its superclass, the two methods are completely unrelated. e. A static method cannot be overridden. If a static method defined in the superclass is redefined in a subclass, the method defined in the superclass is hidden.
Which of the following statements is FALSE regarding safety and e-commerce?
A) Browsers will alert you if you are processing a transaction on an unsafe site. B) A closed padlock on your screen indicates a secure connection. C) Privacy policies indicate how your data will be used by a company. D) Illegitimate sites can use security symbols illegally.
On Google+, the equivalent of Facebook's News Feed, is a(n) ________ of posts from users in your circles
Fill in the blank(s) with correct word