未分类题

WhichtwostatementsaretrueaboutthehashCodemethod?()

A.ThehashCodemethodforagivenclasscanbeusedtotestforobjectequalityandobjectinequalityforthatclass.
B.ThehashCodemethodisusedbythejava.util.SortedSetcollectionclasstoordertheelementswithinthatset.
C.ThehashCodemethodforagivenclasscanbeusedtotestforobjectinequality,butNOTobjectequality,forthatclass.
D.TheonlyimportantcharacteristicofthevaluesreturnedbyahashCodemethodisthatthedistributionofvaluesmustfollowaGaussiandistribution.
E.ThehashCodemethodisusedbythejava.util.HashSetcollectionclasstogrouptheelementswithinthatsetintohashbucketsforswiftretrieval.

【参考答案】

C, E