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 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
