gistfile1.txt

#ruby
[1,2,3,4].select{ |x| x.even? }

#python
[x for x in [1,2,3,4] if not x%2]
#or, more norvingly
filter(lambda x: not x%2, [1,2,3,4])

#clojure
(filter #(even? % ) [1 2 3 4])
#but we don't need the wrapper (thanks to the guys in hackernews:)
(filter even? [1 2 3 4])

#scheme
(filter (lambda (x) (even? x)) '(1 2 3 4))
#same here:
(filter even? '(1 2 3 4))

#common lisp
(remove-if-not (lambda (x) (evenp x)) '(1 2 3 4))
#and here:
(remove-if-not 'evenp '(1 2 3 4))


#javascript
[1,2,3,4].filter(function(x){return !(x%2)})

#java
import java.util.ArrayList;
import java.util.Arrays;
public class filter {
    public static void main (String [] args)
    {
        Integer [] a = {1,2,3,4};

        System.out.println(
                    new ArrayList<Integer>(Arrays.asList(a)){{
                        ArrayList<Integer> clon = (ArrayList<Integer>)this.clone();
                        for(Integer e : clon){
                            if(e.intValue()%2 != 0)
                                this.remove(e);
                        }
                    }}
                );
    }
}