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Friday, 21 January 2011

And the solution...

Well, this one wasn't the toughest by any stretch. But it does highlight some weird syntax that's possible (though highly frowned upon.)

Rather than putting the square brackets that signal the return type is an array straight after the return type, these can also go after the method declaration. So it's exactly the same as:


public class Test{
public byte[][][] functionArray() {
return null;
}
}


So yes, it compiles and runs fine.

It's a bit of a weird design choice this one - these days it's just there for backwards compatibility, and even the JLS goes so far as to say it shouldn't be used in new code. So stay away from writing it, but if you see some weird old code like this then don't be too shocked :-)

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