// innerclasses/MultiImplementation.java // (c)2016 MindView LLC: see Copyright.txt // We make no guarantees that this code is fit for any purpose. // Visit http://mindviewinc.com/Books/OnJava/ for more book information. // For concrete or abstract classes, inner classes // produce "multiple implementation inheritance" // {java innerclasses.MultiImplementation} package innerclasses; class D {} abstract class E {} class Z extends D { E makeE() { return new E() {}; } } public class MultiImplementation { static void takesD(D d) {} static void takesE(E e) {} public static void main(String[] args) { Z z = new Z(); takesD(z); takesE(z.makeE()); } }