单项选择题
What is the result?()
A.A,B,C
B.B,C,A
C.Compilation fails.
D.The code runs with no output
E.An exception is thrown at runtime.
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What inserted at line 39, will sort the keys in the props HashMap?()
A.Arrays.sort(s);
B.s = new TreeSet(s);
C.Collections.sort(s);
D.s = new SortedSet(s); -
单项选择题
What is the result?()
A.2,1,0
B.2,1,1
C.3,2,1
D.3,2,2
E.Compilation fails.
F.An exception is thrown at runtime. -
单项选择题
Given that the elements of a PriorityQueue are ordered according to natural ordering, and: What is the result?()
A.apple pear
B.banana pear
C.apple apple
D.apple banana
E.banana banana
