Java multiple arguments dot notation - Varargs

Question

I've just acknowledged dot notation for method declaration with multiple arguments
like this:

public function getURLs(URL... urls){
    for(int i = 0; i < urls.length; i++){
        // walk through array of arguments
    }
}

And using like this

getURLs(url1, url2, url3);

where those method arguments are converted implicitly into URL[] urls

Did I understand its behavior properly?
Where is documentation to this syntax?
From which version of JRE (J2ME,J2SE,Dalvik) is this supported?

Sean Owen · Accepted Answer · 2011-09-24 12:40:44Z

65

Yes, that is how it works. The arguments are automatically put into an array. The argument "urls" behaves like a URL[]. Varargs are documented here. They were introduced in Java 1.5, so, are available in J2SE 1.5+, and all of Android since it supports Java 1.5+ language features. No version of JavaME/J2ME supports it.

answered Sep 24, 2011 at 12:40

Sean Owen

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2 Comments

kommradHomer Over a year ago

does this array preserve the order ?

Sean Owen Over a year ago

Of course, wouldn't be much use if args were passed in an arbitrary order

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