Java closures

Foo.java

public class Foo {
    final int bar = 6;
    final int[] flarp = new int[] {6};

    public class Baz {
        int bla() {
            return bar;
        }
        int bloo() {
            flarp[0]++;
            return flarp[0];
        }
    }

    public Foo.Baz makeBaz() {
        return new Baz();
    }

    public static void main(String[] args) {
        Foo f = new Foo();
        System.out.println(f.makeBaz().bla()); // prints 6
        System.out.println(f.makeBaz().bloo()); // prints 7
    }
}