In the hexadecimal numbering system, the number 16 is expressed as _____.?
A. ?1F
B. ?F
C. ?10
D. ?1
Answer: C
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Which of the following is false?
a. The size of an ArrayList can be determined via its length instance variable. b. The size of an ArrayList can be determined via its size method. c. You can add a new item to the end of an ArrayList with its add method. c. You can get an item from a specified index in an ArrayList with its get method.
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Answer the following statement true (T) or false (F)
Given maxCount as a class attribute, the initialization of maxCount ___________ .
a. can appear anywhere within a class b. can appear within the private section of a class c. can appear within the parameter list for a class d. can appear within the constructor for the class e. cannot appear within a class
Map method entrySet returns a Set of Map.Entry objects containing the Map’s ________.
a. values b. keys c. index d. key–value pairs