IntToDoubleFunction.java revision e053d5ee5eea301559822c98e69874344c971502
1/*
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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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).
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24 */
25package java.util.function;
26
27/**
28 * Represents a function that accepts an int-valued argument and produces a
29 * double-valued result.  This is the {@code int}-to-{@code double} primitive
30 * specialization for {@link Function}.
31 *
32 * <p>This is a <a href="package-summary.html">functional interface</a>
33 * whose functional method is {@link #applyAsDouble(int)}.
34 *
35 * @see Function
36 * @since 1.8
37 * @hide 1.8
38 */
39@FunctionalInterface
40public interface IntToDoubleFunction {
41
42    /**
43     * Applies this function to the given argument.
44     *
45     * @param value the function argument
46     * @return the function result
47     */
48    double applyAsDouble(int value);
49}
50