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Getting NPE while using Console

Rohan Kayan
Ranch Hand

Joined: Sep 17, 2004
Posts: 123
Hi, I am trying to run following code from Eclipse



Every time I am getting NullPointerException , what could be the issue ??


SCWCD 1.4, SCJP 1.4
Deepak Bala
Bartender

Joined: Feb 24, 2006
Posts: 6661
    
    5

You cannot get a Console from eclipse. You can try out the examples from this article on your command line -> http://www.certpal.com/scjp-6-Console.html


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Neha Daga
Ranch Hand

Joined: Oct 30, 2009
Posts: 504
because in some jvm there may not be a console.
from K&B:
Keep in mind that it's possible for your Java program to be running in an environment that doesn't have access to a console object, so be sure that your invocation of System.console() actually returns a valid console reference and not null.


SCJP 1.6 96%
Deepak Bala
Bartender

Joined: Feb 24, 2006
Posts: 6661
    
    5

because in some jvm there may not be a console.


To correct that a little, some JVM environments may not have a console
 
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subject: Getting NPE while using Console