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认证名称：Sun Certified Programmer for the Java 2 Platform. SE6.0
考题数目：267 Q&As
价格：￥ 368.00 ￥ 300.00
更新：Apr-22-2010

1. Given:

1. public class Threads2 implements Runnable {

2.

3. public void run() {

4. System.out.println("run.");

5. throw new RuntimeException("Problem");

6. }

7. public static void main(String[] args) {

8. Thread t = new Thread(new Threads2());

9. t.start();

10. System.out.println("End of method.");

11. }

12. }

Which two can be results? (Choose two.)

A. java.lang.RuntimeException: Problem

B. run. java.lang.RuntimeException: Problem

C. End of method. java.lang.RuntimeException: Problem

D. End of method. run. java.lang.RuntimeException: Problem

E. run. java.lang.RuntimeException: ProblemEnd of method.

Answer: DE

2. Which two statements are true? (Choose two.)

A. It is possible for more than two threads to deadlock at once.

B. The JVM implementation guarantees that multiple threads cannot enter into a deadlocked state.

C. Deadlocked threads release once their sleep() method's sleep duration has expired.

D. Deadlocking can occur only when the wait(), notify(), and notifyAll() methods are used incorrectly.

E. It is possible for a single-threaded application to deadlock if synchronized blocks are used incorrectly.

F. If a piece of code is capable of deadlocking, you cannot eliminate the possibility of deadlocking by

insertinginvocations of Thread.yield().

Answer:AF

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