40 lines
864 B
Java
40 lines
864 B
Java
//: interfaces/Adventure.java
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// ©2015 MindView LLC: see Copyright.txt
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// Multiple interfaces.
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interface CanFight {
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void fight();
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}
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interface CanSwim {
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void swim();
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}
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interface CanFly {
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void fly();
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}
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class ActionCharacter {
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public void fight() {}
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}
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class Hero extends ActionCharacter
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implements CanFight, CanSwim, CanFly {
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public void swim() {}
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public void fly() {}
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}
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public class Adventure {
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public static void t(CanFight x) { x.fight(); }
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public static void u(CanSwim x) { x.swim(); }
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public static void v(CanFly x) { x.fly(); }
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public static void w(ActionCharacter x) { x.fight(); }
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public static void main(String[] args) {
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Hero h = new Hero();
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t(h); // Treat it as a CanFight
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u(h); // Treat it as a CanSwim
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v(h); // Treat it as a CanFly
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w(h); // Treat it as an ActionCharacter
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}
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} /* Output: (None) *///:~
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