Files

43 lines
869 B
Java

import java.util.*;
class Test {
interface BiFunction<T, U, R> {
R apply(T t, U u);
}
interface Stream<SSS> {
}
public void test(Stream<String> range1, Stream<String> range2) {
zip(range1, range2, (f, s) -> asList(f, s));
zip(range1, range2, Test::asList);
BiFunction<? super String, ? super String, ?> asList = Test::asList;
zip(range1, range2, asList);
}
public static <T> List<T> asList(T... a) {
return null;
}
public static <A, B, C> Stream<C> zip(Stream<? extends A> a,
Stream<? extends B> b,
BiFunction<? super A, ? super B, ? extends C> zipper) {
return null;
}
}
class Test1111 {
interface I<R> {
R apply();
}
public void test(I<?> i) {
bar(i);
}
public static <A> void bar(I<? super A> i) {}
}