Which class(es) safely protects the doIt () method from concurrent thread access?

The correct answer is A. Option A D. Option D. only A und D possible It should be pointed out that: public void blah() { synchronized (this) { is semantically equivalent to: public synchronized void blah() { Incorrect answer: B: A constructor cannot be synchronized. () Object cannot be resolved to a type C: in static…

Concurrency

Question

Options

AOption A
BOption B
COption C
DOption D

How the community answered

(21 responses)

A
81% (17)
B
5% (1)
C
14% (3)

Explanation

only A und D possible It should be pointed out that: public void blah() { synchronized (this) { is semantically equivalent to: public synchronized void blah() { Incorrect answer: B: A constructor cannot be synchronized. () Object cannot be resolved to a type C: in static context (static void main !) no reference to this possible

Topics

#synchronized method#thread safety#concurrent access

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