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单选题
When the length of the run queues， process or thread dispatches interrupts， and lock contention metrics and statistics are analyzed for performance， which of the following resources is being analyzed？（）
A
CPU
B
Memory
C
Disk I/O
D
Network I/O
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单选题When the length of the run queues， process or thread dispatches interrupts， and lock contention metrics and statistics are analyzed for performance， which of the following resources is being analyzed？（）A
CPUB
MemoryC
Disk I/OD
Network I/O
考题
单选题class ThreadBoth extends Thread implements Runnable ｛ public void run（）｛ System.out.print（"hi "）； ｝ public static void main（String [] args）｛ Thread t1 ＝ new ThreadBoth（）； Thread t2 ＝ new Thread（t1）； t1.run（）； t2.run（）； ｝ ｝ 结果为：（）A
hiB
hi hiC
编译失败D
代码运行，但无输出结果
考题
单选题Which method in the Thread class is used to create and launch a new thread of execution？（）A
ensp；Run（）；B
ensp；Start（）；C
ensp；Execute（）；D
ensp；Run（Runnableensp；r）；E
ensp；Start（Runnableensp；r）；F
ensp；Execute（Threadensp；t）；
考题
多选题Which two code fragments will execute the method doStuff（） in a separate thread？（）Anew Thread（） {public void run（） { doStuff（）； }}；Bnew Thread（） {public void start（） { doStuff（）； }}；Cnew Thread（） {public void start（） { doStuff（）； }}.run（）；Dnew Thread（） {public void run（） { doStuff（）； }}.start（）；Enew Thread（new Runnable（） {public void run（） { doStuff（）； }}）.start（）；
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多选题Which two code fragments will execute the method doStuff（） in a separate thread？（）Anew Thread（） { public void run（） { doStuff（）； } }Bnew Thread（） { public void start（） { doStuff（）； } }Cnew Thread（） { public void start（） { doStuff（）； } } .run（）；Dnew Thread（） { public void run（） { doStuff（）； } } .start（）；Enew Thread（new Runnable（） { public void run（） { doStuff（）； } } ）.run（）；Fnew Thread（new Runnable（） { public void run（） { doStuff（）； } }）.start（）；
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多选题Which two can be used to create a new Thread？（）AExtend java.lang.Thread and override the run method.BExtend java.lang.Runnable and override the start method.CImplement java.lang.thread and implement the run method.DImplement java.lang.Runnable and implement the run method.EImplement java.lang.Thread and implement the start method.
考题
单选题现有： class ThreadBoth extends Threaa implements Runnable { public void run（） （System.out.print（"hi"）； } public static voicl main （String [] args） { Thread tl=new ThreadBoth（）： Thread t2 = new Thread （tl）： tl.run（）： t2.run（）： } 结果为：（）A
hi hiB
hiC
编译失败D
运行时异常被抛出
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