试题详情
- 多项选择题 public class SyncTest{ public static void main(String args) { final StringBuffer s1= new StringBuffer(); final StringBuffer s2= new StringBuffer(); new Thread () { public void run() { synchronized(s1) { s2.append(“A”); synchronized(s2) { s2.append(“B”); System.out.print(s1); System.out.print(s2); } } } }.start(); new Thread() { public void run() { synchronized(s2) { s2.append(“C”); synchronized(s1) { s1.append(“D”); System.out.print(s2); System.out.print(s1); } } } }.start(); } } Which two statements are true? ()
A、 The program prints “ABBCAD”
B、 The program prints “CDDACB”
C、 The program prints “ADCBADBC”
D、 The output is a non-deterministic point because of a possible deadlock condition.
E、 The output is dependent on the threading model of the system the program is running on.
- B,D
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