Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

Showing content from https://www.geeksforgeeks.org/java/longtodoublefunction-interface-in-java-with-examples/ below:

LongToDoubleFunction Interface in Java with Examples

Last Updated : 11 Jul, 2025

The

is a part of the

package which has been introduced since Java 8, to implement

in Java. It represents a function which takes in a long-valued argument and gives a double-valued result. The lambda expression assigned to an object of LongToDoubleFunction type is used to define its

which eventually applies the given operation on its only argument. It is similar to using an object of type

<Long, Double>. The LongToDoubleFunction interface has only one function:

This method accepts a long-valued argument and gives a double-valued result.

double applyAsDouble(long value)

This method takes in one parameter

which is the long-valued argument.

This method returns a

result. Below is the code to illustrate applyAsDouble() method:

import java.util.function.LongToDoubleFunction;

public class Main {
    public static void main(String args[])
    {

        LongToDoubleFunction ob = a -> a / 2;

        // Using applyAsDouble() method
        System.out.println(ob.applyAsDouble(3));
    }
}

RetroSearch is an open source project built by @garambo | Open a GitHub Issue

Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo

HTML: 3.2 | Encoding: UTF-8 | Version: 0.7.4