About Question enthuware.ocpjp.v8.2.1286 :

[TomorrowWorld]

This question nor answer doesn't make any sense to me at all. Can anyone describes what that question is asking and the explanation given to that answer?

All I know is that, some operating systems may not support

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Console 

class to be instantiated. In that case,

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System.console()

will return

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null

.

[admin]

That is correct. You use System.console() to acquire Console object but it will return null if the JVM instance doesn't support Console. That is all that it is asking.

[lennychapfuwa]

"If no console device is available then an invocation of that method will return null." What is a console device. Can you really explain what is a console. Is it a class, or some software that facilitates some operation.

[admin]

Are you following any book? If not, please go through this to learn all about Console: https://docs.oracle.com/javase/7/docs/a ... nsole.html

Usually, Console is nothing but the command window from where you run your java class.