LongBinaryOperator Interface in Java 8 with examples

This entry is part 3 of 43 in the series Java 8 Functional Interfaces

LongBinaryOperator 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 expects two arguments of type long as an input and produces a long type 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 LongBinaryOperator Interface by using different examples.


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Look at LongBinaryOperator Javadoc description below:






LongBinaryOperator Interface contains below method:


Let’s discuss this method:


This method performs operation on the given arguments and return the long-valued result.


Lets understand above mentioned method through below example:

Example. ‘applyAsLong’ method



Java 8 LongBinaryOperator 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.


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