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src/java.base/share/classes/java/util/function/Function.java

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*** 20,30 **** * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ ! package java.util.function; import java.util.Objects; /** * Represents a function that accepts one argument and produces a result. --- 20,30 ---- * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ ! package javany.util.function; import java.util.Objects; /** * Represents a function that accepts one argument and produces a result.
*** 36,46 **** * @param <R> the type of the result of the function * * @since 1.8 */ @FunctionalInterface ! public interface Function<T, R> { /** * Applies this function to the given argument. * * @param t the function argument --- 36,46 ---- * @param <R> the type of the result of the function * * @since 1.8 */ @FunctionalInterface ! public interface Function<any T, any R> { /** * Applies this function to the given argument. * * @param t the function argument
*** 61,71 **** * function and then applies this function * @throws NullPointerException if before is null * * @see #andThen(Function) */ ! default <V> Function<V, R> compose(Function<? super V, ? extends T> before) { Objects.requireNonNull(before); return (V v) -> apply(before.apply(v)); } /** --- 61,71 ---- * function and then applies this function * @throws NullPointerException if before is null * * @see #andThen(Function) */ ! default <any V> Function<V, R> compose(Function<? super V, ? extends T> before) { Objects.requireNonNull(before); return (V v) -> apply(before.apply(v)); } /**
*** 81,100 **** * applies the {@code after} function * @throws NullPointerException if after is null * * @see #compose(Function) */ ! default <V> Function<T, V> andThen(Function<? super R, ? extends V> after) { Objects.requireNonNull(after); return (T t) -> after.apply(apply(t)); } /** * Returns a function that always returns its input argument. * * @param <T> the type of the input and output objects to the function * @return a function that always returns its input argument */ ! static <T> Function<T, T> identity() { return t -> t; } } --- 81,100 ---- * applies the {@code after} function * @throws NullPointerException if after is null * * @see #compose(Function) */ ! default <any V> Function<T, V> andThen(Function<? super R, ? extends V> after) { Objects.requireNonNull(after); return (T t) -> after.apply(apply(t)); } /** * Returns a function that always returns its input argument. * * @param <T> the type of the input and output objects to the function * @return a function that always returns its input argument */ ! static <any T> Function<T, T> identity() { return t -> t; } }
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