IntToLongFunction Interface is a part of the java.util.function package which is introduced in Java 8. It is an in-built Functional Interface. This function accepts a int-valued argument and produces a long-valued result. As it is a functional interface, it can be used assignment target for lambda expression or method reference. In this post, we are going to see several implementations of IntToLongFunction Interface by using different examples.

IntToLongFunction_Interface_Java8_Techndeck

IntToLongFunction Interface in Java 8 with Examples...!!! Click To Tweet

Look at IntToLongFunction Javadoc description below:

IntToLongFunctionInterface_Signature_Java8_Techndeck

IntToLongFunction Interface contains following method:

applyAsLong

This method performs operation on the given int-valued argument and return an long-valued result.

Lets understand above mentioned method through below example:

Example: ‘applyAsLong’ method

Output:
Java 8 IntToLongFunction Interface is an absolute useful addition as part of ‘Functional Interfaces’ and can serve variety of purposes. It is quite powerful as it can be used as a higher order functions through lambda functions and above examples could help you to get better idea on how to implement it.

IntToLongFunction Interface in Java 8 with Examples...!!! Click To Tweet

Do you like this Post? – then check my other helpful posts:

Other Useful References: