单项选择题

Given: What is the result?（）……

Given:

What is the result?（）

A.Hello
B.Hello World
C.Compilation fails.
D.Hello World 5
E.The code runs with no output.
F.An exception is thrown at runtime.

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单项选择题Given: What is the result?（）

A.The code runs with no output.
B.An exception is thrown at runtime.
C.Compilation fails because of an error in line 20.
D.Compilation fails because of an error in line 21.
E.Compilation fails because of an error in line 23.
F.Compilation fails because of an error in line 25.

多项选择题Given: Which two statements are true?（）

A.The output could be 8-1 7-2 8-2 7-1
B.The output could be 7-1 7-2 8-1 6-1
C.The output could be 8-1 7-1 7-2 8-2
D.The output could be 8-1 8-2 7-1 7-2

单项选择题Given: What is the result?（）

A.Compilation fails.
B.An exception is thrown at runtime.
C.The code executes and prints "running".
D.The code executes and prints "runningrunning".
E.The code executes and prints "runningrunningrunning".

单项选择题Given that t1 is a reference to a live thread, which is true?（）

A.The Thread.sleep() method can take t1 as an argument.
B.The Object.notify() method can take t1 as an argument.
C.The Thread.yield() method can take t1 as an argument.
D.The Thread.setPriority() method can take t1 as an argument.
E.The Object.notify() method arbitrarily chooses which thread to notify.

单项选择题Given: What is the result?（）

A.Compilation fails.
B.After line 15, the value of age is 5.
C.After line 15, the value of age is 3.
D.An exception is thrown at runtime.