OnJava8-Examples/innerclasses/MultiImplementation.java
2016-01-25 18:05:55 -08:00

25 lines
633 B
Java

// 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"
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());
}
}