Java.util.function.LongBinaryOperator interface with Examples Last Updated : 18 Jul, 2019 Comments Improve Suggest changes Like Article Like Report 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 encapsulated from the user. Methods: applyAsLong(): This function takes two long values, performs the required operation and returns the result as a long. public long applyAsLong(long val1, long val2) Example to demonstrate LongBinaryOperator interface as a lambda expression . Java // Java program to demonstrate LongBinaryOperator import java.util.function.LongBinaryOperator; public class LongBinaryOperatorDemo { public static void main(String[] args) { LongBinaryOperator longBinaryOperator = (x, y) -> { return x + y; }; System.out.print("343666 + 547477 = "); System.out.println(longBinaryOperator .applyAsLong(343666, 547477)); LongBinaryOperator longBinaryOperator1 = (x, y) -> { return x * y; }; System.out.print("343666 * 547477 = "); System.out.println(longBinaryOperator1 .applyAsLong(343666, 547477)); } } Output: 343666 + 547477 = 891143 343666 * 547477 = 188149230682 Reference: https://docs.oracle.com/javase/8/docs/api/java/util/function/LongBinaryOperator.html Comment More infoAdvertise with us Next Article Java.util.function.LongBinaryOperator interface with Examples C CharchitKapoor Follow Improve Article Tags : Java Java - util package Java-Functional-Interfaces Practice Tags : Java Similar Reads Java.util.function.LongPredicate interface in Java with Examples The LongPredicate interface was introduced in JDK 8. 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