LongConsumer Interface in Java with Examples

LongToIntFunction Interface in Java with Examples

Last Updated : 08 Oct, 2018

The LongToIntFunction Interface is a part of the java.util.function package which has been introduced since Java 8, to implement functional programming in Java. It represents a function which takes in a long-valued argument and gives an int-valued result.

The lambda expression assigned to an object of DoubleToLongFunction type is used to define its applyAsInt() which eventually applies the given operation on its only argument. It is similar to using an object of type Function<Long, Integer>.

The LongToIntFunction interface has only one function:

applyAsInt()

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

Syntax:

int applyAsInt(long value)

Parameters: This method takes in one parameter value which is the long-valued argument.

Returns: This method returns an int-valued result.

Below is the code to illustrate applyAsInt() method:

Program

// Java Program to demonstrate 
// LongToIntFunction's applyAsInt() method 
  
import java.util.function.LongToIntFunction; 
  
public class Main { 
    public static void main(String args[]) 
    { 
  
        // Instantiating LongToIntFunction 
        LongToIntFunction ob = a -> (int)a * 100000; 
  
        // Applying the above function 
        // using applyAsInt() 
        System.out.println(ob.applyAsInt(2)); 
    } 
} 

Output:

LongConsumer Interface in Java with Examples

P

psil123

Improve

Article Tags :

Practice Tags :

Java

Similar Reads

ToIntFunction Interface in Java with Examples

The ToIntFunction Interface is a part of the java.util.function package which has been introduced since Java 8, to implement functional programming in Java. It represents a function which takes in an argument of type T and produces an int-valued result. This functional interface takes in only one ge

LongFunction Interface in Java with Examples

The LongFunction Interface is a part of the java.util.function package which has been introduced since Java 8, to implement functional programming in Java. It represents a function which takes in a long-valued argument and produces a result of type R. This functional interface takes in only one gene

ToLongFunction Interface in Java with Examples

The ToLongFunction Interface is a part of the java.util.function package which has been introduced since Java 8, to implement functional programming in Java. It represents a function which takes in an argument of type T and produces a long-valued result. This functional interface takes in only one g

ToDoubleFunction Interface in Java with Examples

The ToDoubleFunction Interface is a part of the java.util.function package which has been introduced since Java 8, to implement functional programming in Java. It represents a function which takes in an argument of type T and produces a double-valued result. This functional interface takes in only o

LongConsumer Interface in Java with Examples

The LongConsumer Interface is a part of the java.util.function package which has been introduced since Java 8, to implement functional programming in Java. It represents a function which takes in one long-valued argument but does not return any value. The lambda expression assigned to an object of L

IntFunction Interface in Java with Examples

The IntFunction Interface is a part of the java.util.function package which has been introduced since Java 8, to implement functional programming in Java. It represents a function which takes in an int-valued argument and produces a result of type R. This functional interface takes in only one gener

Java 8 | LongSupplier Interface with Examples

The LongSupplier Interface is a part of the java.util.function package which has been introduced since Java 8, to implement functional programming in Java. It represents a function which does not take in any argument but produces a long value. The lambda expression assigned to an object of LongSuppl

Java.util.function.LongBinaryOperator interface with Examples

The LongBinaryOperator interface was introduced in Java 8. It represents an operation on two long values and returns the result as a long value. It is a functional interface and thus can be used as a lambda expression or in a method reference. It is mostly used when the operation needs to be encapsu

Supplier Interface in Java with Examples

The Supplier Interface is a part of the java.util.function package which has been introduced since Java 8, to implement functional programming in Java. It represents a function which does not take in any argument but produces a value of type T. Hence this functional interface takes in only one gener

Java 8 | ObjIntConsumer Interface with Example

The ObjIntConsumer Interface is a part of the java.util.function package which has been introduced since Java 8, to implement functional programming in Java. It represents a function which takes in two arguments and produces a result. However these kind of functions don't return any value. Hence thi