publicclassPerson{privatename;publicPerson(Stringname){this.name=name;}publicboo
2021-05-05
A.CompilationfailsbecausethehashCodemethodisnotoverridden.
B.AHashSetcouldcontainmultiplePersonobjectswiththesamename.
C.AllPersonobjectswillhavethesamehashcodebecausethehashCodemethodisnotoverridden.
D.IfaHashSetcontainsmorethanonePersonobjectwithname=”Fred”,thenremovinganother person,alsowithname=”Fred”,willremovethemall.
正确答案:参考B
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