17 lines
343 B
Java
17 lines
343 B
Java
//: polymorphism/music/Music.java
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// Inheritance & upcasting.
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package polymorphism.music;
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public class Music {
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public static void tune(Instrument i) {
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// ...
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i.play(Note.MIDDLE_C);
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}
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public static void main(String[] args) {
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Wind flute = new Wind();
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tune(flute); // Upcasting
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}
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} /* Output:
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Wind.play() MIDDLE_C
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*///:~
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