单项选择题

Given:

What is the result?（）

A.6
B.7
C.10
D.11
E.Compilation fails.
F.An exception is thrown at runtime.

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单项选择题

A. Compilation succeeds.
B. Class A does not compile.
C. The method declared on line 9 cannot be modified to throw TestException.
D. TestA compiles if line 10 is enclosed in a try/catch block that catches TestException.

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();

Given: What is the result?（）

Given:

What is the result?（）