2015-12-02 09:20:27 -08:00
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// functional/ClassFunctionals.java
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2015-12-15 11:47:04 -08:00
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// (c)2016 MindView LLC: see Copyright.txt
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2015-12-02 09:20:27 -08:00
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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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import java.util.*;
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import java.util.function.*;
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class AA {}
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class BB {}
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class CC {}
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public class ClassFunctionals {
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static AA f1() { return new AA(); }
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static int f2(AA aa1, AA aa2) { return 1; }
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static void f3(AA aa) {}
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static void f4(AA aa, BB bb) {}
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static CC f5(AA aa) { return new CC(); }
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static CC f6(AA aa, BB bb) { return new CC(); }
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static boolean f7(AA aa) { return true; }
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static boolean f8(AA aa, BB bb) { return true; }
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static AA f9(AA aa) { return new AA(); }
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static AA f10(AA aa1, AA aa2) { return new AA(); }
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public static void main(String[] args) {
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Supplier<AA> s = ClassFunctionals::f1;
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s.get();
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Comparator<AA> c = ClassFunctionals::f2;
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c.compare(new AA(), new AA());
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Consumer<AA> cons = ClassFunctionals::f3;
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cons.accept(new AA());
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BiConsumer<AA,BB> bicons = ClassFunctionals::f4;
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bicons.accept(new AA(), new BB());
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Function<AA,CC> f = ClassFunctionals::f5;
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CC cc = f.apply(new AA());
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BiFunction<AA,BB,CC> bif = ClassFunctionals::f6;
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cc = bif.apply(new AA(), new BB());
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Predicate<AA> p = ClassFunctionals::f7;
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boolean result = p.test(new AA());
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BiPredicate<AA,BB> bip = ClassFunctionals::f8;
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result = bip.test(new AA(), new BB());
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UnaryOperator<AA> uo = ClassFunctionals::f9;
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AA aa = uo.apply(new AA());
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BinaryOperator<AA> bo = ClassFunctionals::f10;
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aa = bo.apply(new AA(), new AA());
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}
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}
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