Fibonacci Continuation Passing Style in Java

Fib.java

interface Cont {
    int k(int v);
}

public class Fib {
    public static void main(String args[]){
        String res = "";
        int arr[] = {0,1,2,3,4,5,6,7,8,10};
        for (int elem:arr) {
            res += (fib(elem,
                    new Cont() {
                        public int k(int v) {
                            return v;
                        }})) + ", ";
        }
        System.out.println("First 10 fibonacci numbers: "+res);
    }

    static int fib(final int n, final Cont cont) {
        if (n <= 1) {
            return cont.k(1);
        } else {
            return fib(n-1, 
                    new Cont(){
                        public int k(final int ret){
                            return fib(n-2, new Cont(){
                                public int k(int ret2){
                                    return cont.k(ret+ret2);
                                }
                            });
                        }
                    });
        }
    }
}