30 lines
610 B
Java
30 lines
610 B
Java
// functions/UnboundMethodReference.java
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// Method reference without an object.
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import java.util.*;
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import java.util.function.*;
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class X {
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String f() { return "X.f()"; }
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}
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public class UnboundMethodReference {
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public static void main(String[] args) {
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Function<String, Integer> len = String::length;
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System.out.println(len.apply("UnboundMethodReference"));
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List<String> words =
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Arrays.asList("Rain", "Spain", "Plain");
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words.forEach(System.out::println);
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Function<X, String> xfr = X::f;
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System.out.println(xfr.apply(new X()));
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}
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}
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/* Output:
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22
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Rain
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Spain
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Plain
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X.f()
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*/
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