单项选择题

Given:

What is the result?()

A.int Long
B.Short Long
C.Compilation fails.
D.An exception is thrown at runtime.

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单项选择题
Given: Which statement is true?()

A.Compilation fails.
B.An exception is thrown at runtime.
C.Synchronizing the run() method would make the class thread-safe.
D.The data in variable "x" are protected from concurrent access problems.
E.Declaring the doThings() method as static would make the class thread-safe.

多项选择题
Given that Triangle implements Runnable, and: Which two statements, inserted independently at both lines 35 and 41, tend to allow both threads totemporarily pause and allow the other thread to execute?()

A.Thread.wait();
B.Thread.join();
C.Thread.yield();
D.Thread.sleep(1);
E.Thread.notify();

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