34 lines
829 B
Java
34 lines
829 B
Java
// functions/arr/ArgReturnReferences.java
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// Demonstrates method references
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package functions.arr;
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import java.util.function.*;
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class Y {
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static Y create() { return new Y(); }
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static void absorb(Y y) {}
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static String transform1(Y y) { return "Y"; }
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static String transform2(Y y, String s) {
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return "Y" + " " + s;
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}
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}
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public class ArgReturnReferences {
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Supplier<Y> supply = Y::create;
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Consumer<Y> consume = Y::absorb;
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Function<Y, String> f1arg = Y::transform1;
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BiFunction<Y, String, String> f2arg =
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Y::transform2;
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public static void main(String[] args) {
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ArgReturnReferences arr =
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new ArgReturnReferences();
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Y y = arr.supply.get();
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arr.consume.accept(y);
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System.out.println(arr.f1arg.apply(y));
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System.out.println(arr.f2arg.apply(y, "Howdy"));
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}
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}
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/* Output:
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Y
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Y Howdy
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*/
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