A Bad Hello World example using static and public references of objects.

Parent.java

public class Parent {

    public static final Level1 l1 = new Level1();

    public static class Level1 {
        public final Level2 l2 = new Level2();
    }

    public static class Level2 {
        public final String helloWorld = "Hello World";
    }

    public static void main(final String[] args) {
        System.out.println(Parent.l1.l2.helloWorld);
    }

}