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- Functional Interface:
- This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
 
 @FunctionalInterface public interface DoubleToLongFunction Represents a function that accepts a double-valued argument and produces a long-valued result. This is thedouble-to-longprimitive specialization forFunction.This is a functional interface whose functional method is applyAsLong(double).- Since:
- 1.8
- See Also:
- Function
 
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Method SummaryAll Methods Instance Methods Abstract Methods Modifier and Type Method Description longapplyAsLong(double value)Applies this function to the given argument.
 
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