java - Why can't I use a String array with a method taking an Iterable as a parameter? -

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i'm trying write own "functional" little lib in java. if have function :

public static <t> list<t> filter(iterable<t> source,booleantest predicate) {     list<t> results = new arraylist<t>();     for(t t : source)     {          if(predicate.ok(t))             results.add(t);     }     return results; }

why can't use snippet:

string strings[] = {"one","two","three"}; list<string> containingo = iterablefuncs.filter(strings,new booleantest() {    public boolean ok(string obj) {      return obj.indexof("o") != -1;    } });

as far know, java array implements iterable, right? needs changed make function work arrays, collections? choosing iterable first parameter, figured got cases covered.

i agree, it's annoying.

you overload filter() thusly...

public static <t> list<t> filter(t[] source, booleantest predicate) {     return filter(arrays.aslist(source), predicate); }

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