About Question enthuware.ocpjp.v8.2.1881 :

[jamesfeng2]

//4 should be Boiler.shutdown(); ?

[admin]

Yes, and that is why option 3 is a wrong option.

HTH,
Paul.

[Touciuciu]

Option 3 is not wrong, there is a compilation failure if we do not change that line so either option 3 is the correct one or wither you change option 4 to say that by changing the line to Boiler.shutdown(); will print...

Please correct the question as it is missleading and confussing.

[admin]

Option 3 is indeed set as the correct option.

[bvrulez]

Is it safe to say that static methods of interfaces are not inherited from a subinterface? While static methods of classes are inherited from subclasses.

[admin]

"inherit" is a wrong word for static methods but yes, one could say that static method of an interface is not inherited by a subinterface. You should try some code to check it out.