相关考题
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问答题
DRAG DROP Click the Task button. -
问答题
DRAG DROP Click the Task button. -
单项选择题
Given: Which code, inserted at line 4, guarantees that this program will output [1, 2]（）?
A.Set set = new TreeSet();
B.Set set = new HashSet();
C.Set set = new SortedSet();
D.List set = new SortedList();
E.Set set = new LinkedHashSet();
