***NEED HELP ASAP PLEASE WITH THIS PROBLEM!** - SIMPLE UNDERSTANDING PLEASE!

interface Predicate { boolean eval(Integer j); } class IsEven implements Predicate { boolean eval(int i) { return (i %2 ==0); } } Write code for: class Not implements Predicate {...} such that the code: Predicate p = new IsEven(); Predicate n = new Not(p): Predicate j = new Not(n); if (p.eval(2)) { System.out.println("2 is even"); } if (!n.eval(2)) { System.out.println("2 is even"); } if (n.eval(3)) { System.out.println("3 is not even")}; if (p.eval(3)) { System.out.println("3 is not even")}; if (i.eval(2)) { System.out.println("2 is even")}; if (!i.eval(3)) { System.out.println("3 is not even")}; produces the output: 2 is even 2 is even 3 is not even 3 is not even 2 is even 3 is not even