blob: bd301543300c96149e67aa937fb5066e72972dc6 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
|
import java.util.function.Function;
import java.util.function.Consumer;
class ExtensionMethodFunctional {
public void test() {
String test = "test";
test = ExtensionMethodFunctional.Extensions.map(test, s -> ExtensionMethodFunctional.Extensions.reverse(s));
ExtensionMethodFunctional.Extensions.consume(test, s -> System.out.println("1: " + s), s -> System.out.println("2: " + s));
ExtensionMethodFunctional.Extensions.consume(test, System.out::println, System.out::println);
}
static class Extensions {
public static <T, R> R map(T value, Function<T, R> mapper) {
return mapper.apply(value);
}
public static String reverse(String string) {
return new StringBuilder(string).reverse().toString();
}
@SafeVarargs
public static <T> void consume(T o, Consumer<T>... consumer) {
for (int i = 0; i < consumer.length; i++) {
consumer[i].accept(o);
}
}
}
}
|
