33 lines
750 B
Java
33 lines
750 B
Java
// innerclasses/mui/MultiInterfaces.java
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// (c)2016 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
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// Two ways that a class can implement multiple interfaces
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// {java innerclasses.mui.MultiInterfaces}
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package innerclasses.mui;
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interface A {}
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interface B {}
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class X implements A, B {}
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class Y implements A {
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B makeB() {
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// Anonymous inner class:
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return new B() {};
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}
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}
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public class MultiInterfaces {
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static void takesA(A a) {}
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static void takesB(B b) {}
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public static void main(String[] args) {
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X x = new X();
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Y y = new Y();
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takesA(x);
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takesA(y);
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takesB(x);
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takesB(y.makeB());
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}
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}
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