18 lines
502 B
Java
18 lines
502 B
Java
// interfaces/Instantiable.java
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// (c)2021 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://OnJava8.com for more book information.
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abstract class Uninstantiable {
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abstract void f();
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abstract int g();
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}
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public class Instantiable extends Uninstantiable {
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@Override void f() { System.out.println("f()"); }
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@Override int g() { return 22; }
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public static void main(String[] args) {
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Uninstantiable ui = new Instantiable();
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}
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}
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