1 /*
2  * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
5  * This code is free software; you can redistribute it and/or modify it
6  * under the terms of the GNU General Public License version 2 only, as
7  * published by the Free Software Foundation.  Oracle designates this
8  * particular file as subject to the "Classpath" exception as provided
9  * by Oracle in the LICENSE file that accompanied this code.
10  *
11  * This code is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14  * version 2 for more details (a copy is included in the LICENSE file that
15  * accompanied this code).
16  *
17  * You should have received a copy of the GNU General Public License version
18  * 2 along with this work; if not, write to the Free Software Foundation,
19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20  *
21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22  * or visit www.oracle.com if you need additional information or have any
23  * questions.
24  */
25 package java.util.function;
26 
27 /**
28  * Represents an operation upon two {@code double}-valued operands and producing a
29  * {@code double}-valued result.   This is the primitive type specialization of
30  * {@link BinaryOperator} for {@code double}.
31  *
32  * <p>This is a <a href="package-summary.html">functional interface</a>
33  * whose functional method is {@link #applyAsDouble(double, double)}.
34  *
35  * @see BinaryOperator
36  * @see DoubleUnaryOperator
37  * @since 1.8
38  */
39 @FunctionalInterface
40 public interface DoubleBinaryOperator {
41     /**
42      * Applies this operator to the given operands.
43      *
44      * @param left the first operand
45      * @param right the second operand
46      * @return the operator result
47      */
applyAsDouble(double left, double right)48     double applyAsDouble(double left, double right);
49 }
50