Thinking in Patterns with Java. BoxAdcontent.document.write("BC"); Thinking in Java; Prev: Contents / Index: Next: 8: Interfaces & Inner Classes. that has a method that returns a reference to the first class. George Laframboise, LightWorx Technology Consulting, Inc. © 1996-2020, Amazon.com, Inc. or its affiliates. BoxAdcontent.document.write("