IntToDoubleFunction.java

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 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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package java.util.function;

/**
 * Represents a function that accepts an int-valued argument and produces a
 * double-valued result.  This is the {@code int}-to-{@code double} primitive
 * specialization for {@link Function}.
 *
 * <p>This is a <a href="package-summary.html">functional interface</a>
 * whose functional method is {@link #applyAsDouble(int)}.
 *
 * @see Function
 * @since 1.8
 */
@FunctionalInterface
public interface IntToDoubleFunction {

    /**
     * Applies this function to the given argument.
     *
     * @param value the function argument
     * @return the function result
     */
    double applyAsDouble(int value);
}