Set接口的具体实现类有HashSet和TreeSet

A.ArrayList

B.LinkedList

C.HashSet

D.TreeSet

A.ArrayList

B.LinkedList

C.HashSet

D.TreeSet

A.HashMap

B.HashSet

C.TreeSet

D.LinkedList

A.HashSet mySet = new Object();

B.HashSet mySet = new Set();

C.Set mySet = new Set();

D.Set mySet = new HashSet();

A.Java中所用的集合类，都是实现了Collection接口

B.HashSet和TreeSet均为有序的顺序由小到大

C.Set中的元素是不能重复的

D.集合类存放的是对象本身

A.ArrayList

B.HashSet

C.Vector

D.LinkedList

A.LinkedList

B.ArrayList

C.TreeMap

D.HashSet