多选题Which two statements are true？（）AIt is possible for more than two threads to deadlock at once.BThe JVM implementation guarantees that multiple threads cannot enter into a deadlocked state.CDeadlocked threads release once their sleep（） method’s sleep du
题目
多选题
Which two statements are true？（）
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 ofdeadlocking by insertinginvocations of Thread.yield（）.