Getting NPE while using Console

[Rohan Kayan]

Hi, I am trying to run following code from Eclipse

  

public static void main(String[] args) {
		Console console = System.console();
		String name = console.readLine("%s", "input?: ");

}

  

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

[Deepak Bala]

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

[Neha Daga]

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.

[Deepak Bala]

because in some jvm there may not be a console.

To correct that a little, some JVM environments may not have a console