Exception 2 - string...HELP

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toy - 07 Nov 2005 20:30 GMT

Miller_Rabin.java:24: unreported exception java.io.IOException; must be

> caught or declared to be thrown
> String ns = stdin.readLine();

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VisionSet - 07 Nov 2005 20:50 GMT

> Miller_Rabin.java:24: unreported exception java.io.IOException; must be
> > caught or declared to be thrown
> > String ns = stdin.readLine();

It may throw a 'checked' exception so you must provide a way to deal with
that possibility.

String ns = null;
try {
ns = stdin.readLine();
}
catch(java.io.IOException ex) {
ex.printStackTrace();
}

note ns is declared outside of the try/catch block so that the reference
remains in scope so you can use it later.

--
Mike W

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toy - 07 Nov 2005 21:23 GMT

thanks so much :-D

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Oliver Wong - 07 Nov 2005 21:51 GMT

> thanks so much :-D

You know what they say about teaching a man to fish versus giving him a
fish every day?

If you're going to have to stop coding and post a question on the
newsgroup every time you encounter a method which throws an Exception,
you're going to be a very slow Java programmer.

I strongly recommend that you read Sun's tutorial on exception handling.
That way, when you encounter a problem like this, you can solve it yourself,
thus saving yourself time which you can spend helping newbies on the
newsgroup (or spend playing video games or just sleeping or whatever you
want to do with your time).

Here's the link again:

http://java.sun.com/docs/books/tutorial/essential/exceptions/

- Oliver

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Exception 2 - string...HELP

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