Mega Code Archive
With concrete or abstract classes, inner classes are the only way to produce the effect
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// : c08:MultiImplementation.java
// With concrete or abstract classes, inner classes are the only way to produce the effect
// of "multiple implementation inheritance."
// From 'Thinking in Java, 3rd ed.' (c) Bruce Eckel 2002
// www.BruceEckel.com. See copyright notice in CopyRight.txt.
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());
}
} ///:~
]]>