Which constructs an anonymous inner class instance?

Question

D is correct. It defines an anonymous inner class instance, which also means it creates an instance of that new anonymous class at the same time. The anonymous class is an implementer of theRunnableinterface, so it must override therun()method ofRunnable.A is incorrect because it doesn't override therun()method, so it violates the rules of interface implementation.B and C use incorrect syntax.

Accepted Answer

Runnable r = new Runnable { public void run(){}};

Answer

Runnable r = new Runnable() { };

Answer

Runnable r = new Runnable(public void run() { });

Answer

System.out.println(new Runnable() {public void run() { }});

Question 755: Which constructs an anonymous inner class instance?