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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
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package java.util.function;

/**
 * Apply a function to the input arguments, yielding an appropriate result. This
 * is the two-arity specialization of {@link Function}. A function may
 * variously provide a mapping between types, object instances or keys and
 * values or any other form of transformation upon the input.
 *
 * @param <T> the type of the first argument to the {@code apply} operation.
 * @param <U> the type of the second argument to the {@code apply} operation.
 * @param <R> the type of results returned by the {@code apply} operation.
 *
 * @see Function
 * @since 1.8
 */
@FunctionalInterface
public interface BiFunction<T, U, R> {

    /**
     * Compute the result of applying the function to the input arguments
     *
     * @param t an input object
     * @param u an input object
     * @return the function result
     */
    R apply(T t, U u);
}