Listing 3. Declare an enclosing class with a nested non-static member class (EnclosingClass.java, version 2) class EnclosingClass { private String s; private void m() { System.out.println(s); ...

In a previous Java 101 tutorial, you learned how to better organize your code by declaring reference types (also known as classes and interfaces) as members of other reference types and blocks.

However, several requirements — the need to define a class, declare a String array, use an access modifier and use the static keyword ... as the succinct Java ‘Hello World’ program written above, a ...