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多选题
Given a class whose instances， when found in a collection of objects， are sorted by using the compareTo（） method， which two statements are true？（）
A
The class implements java.lang.Comparable.
B
The class implements java.util.Comparator.
C
The interface used to implement sorting allows this class to define only one sort sequence.
D
The interface used to implement sorting allows this class to define many different sort sequences.
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更多 “多选题Given a class whose instances， when found in a collection of objects， are sorted by using the compareTo（） method， which two statements are true？（）AThe class implements java.lang.Comparable.BThe class implements java.util.Comparator.CThe interface used to implement sorting allows this class to define only one sort sequence.DThe interface used to implement sorting allows this class to define many different sort sequences.” 相关考题
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Line 5B
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When compilation some error will occur.B
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The output is zero.D
The output is null.
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多选题Which two statements are true about the hashCode method？（）AThe hashCode method for a given class can be used to test for object equality and object inequality for that class.BThe hashCode method is used by the java.util.SortedSet collection class to order theelements within that set.CThe hashCode method for a given class can be used to test for object inequality， but NOT object equality， for that class.DThe only important characteristic of the values returned by a hashCode method is that the distribution of values must follow a Gaussian distribution.EThe hashCode method is used by the java.util.HashSet collection class to group the elements within that set into hash buckets for swift retrieval.
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