static nested class and non-static nested (inner) class

http://stackoverflow.com/questions/70324/java-inner-class-and-static-nested-class

-----------------------------------static nested---------------------------------------

package pizza;
public class Rhino {

    ...

    public static class Goat {
        ...
    }
}

### 

Rhino.Goat goat = new Rhino.Goat(); 

###

NOTE: 

A non-static nested class (or 'inner class') has full access to the members of the class within which it is nested.

-----------------------------------non-static nested (inner)---------------------------------------

package pizza;
public class Rhino {

    public class Goat {
        ...
    }

    private void jerry() {
        Goat g = new Goat();
    }
}

### 

Rhino rhino = new Rhino();
Rhino.Goat goat = rhino.new Goat();

###

A static nested class does not have a reference to a nesting instance, so a static nested class cannot invoke non-static methods or access non-static fields of an instance of the class within which it is nested. 

http://stackoverflow.com/questions/1353309/java-static-vs-non-static-inner-class

http://www.brpreiss.com/books/opus5/html/page601.html