This also means that the source code for clojure.core/format is a good
study on how to make use of Java vararg methods:
(defn format
"Formats a string using java.lang.String.format, see
java.util.Formatter for format
string syntax"
{:tag String}
[fmt & args]
(String/format fmt (to-array args)))
On Feb 17, 12:41 pm, Kevin Downey <redc...@gmail.com> wrote:
> the [ in front means an array. the String.format takes java varargs,
> which the compiler de-sugars as an array. easier to use clojure's own
> format function. which calls String's format method in the end, but
> you don't have to create the array manually.
>
>
>
>
>
> On Wed, Feb 17, 2010 at 9:21 AM, Phil <verisimilid...@gmail.com> wrote:
> > Sorry for the newbie question, but this seems a strange error
> > message. Either it is saying that a java.lang.Integer cannot be cast
> > to an Object, or it is saying that it can't be cast to a particular
> > object. Some enlightenment would be appreciated.
>
> > user=> (. String format "%d" 28)
> > java.lang.ClassCastException: java.lang.Integer cannot be cast to
> > [Ljava.lang.Object; (NO_SOURCE_FILE:0)
>
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> --
> And what is good, Phaedrus,
> And what is not good—
> Need we ask anyone to tell us these things?
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