file naming conventions

[venkman]

According to the specification of java, does a file have to be named "<public class name>.java" ? I know that the sun compiler I use on my linux box throws an error if you try to compile a file like "foo.java" with a public class of "bar" in it, but is this just a recommendation that sun's compiler follows, or is it an actual requirement for every java compiler?

-Venkman

 

[EBGreen]

As far as I know it is universal. More importantly it is good practice.

[red]"... isn't sanity really just a one trick pony anyway?! I mean, all you get is one trick, rational thinking, but when you are good and crazy, oooh, oooh, oooh, the sky is the limit!" - The Tick[/red]

 

[AvaB]

a file named "foo.java" must have a "public class foo" in it.

 

[sedj]

Its a requirement.

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[venkman]

hmmm... does have anyone have a place where I can cite this in the specification for java compilers. I know I've seen it in every compiler I've ever looked at, but I'm in the midst of an academic argument about it and need an official source to reference to.

 

[EBGreen]

According to this page, the naming convention is not required by the Java Language Specification, but it is a policy enforced through the JDK. I happen to think it is a good policy to have.

http://www.ictp.trieste.it/~manuals/programming/Java/tutorial/java/interpack/managingfiles.html

[red]"... isn't sanity really just a one trick pony anyway?! I mean, all you get is one trick, rational thinking, but when you are good and crazy, oooh, oooh, oooh, the sky is the limit!" - The Tick[/red]

 

[sedj]

A quick scan through the JLS, I cannot see anything enforcing this naming convention in non-Sun compilers, however if you really want the definitive answer, I would read the JLS yourself :

http://java.sun.com/docs/books/jls/

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[stefanwagner]

Good practice is of couse 'Foo' in 'Foo.java' - not 'foo'.

I don't know, if every compiler compiles from Files - I could imagine saving sources in Databases, or getting them fileless from some generator... but don't know of any.

And I guess the compilers depend on this rule, to find the sources quickly.

But I don't have a official link too.

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