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.
LongBinaryOperator Interface in Java 8 with Examples...!!! Share on X
Look at LongBinaryOperator Javadoc description below:
LongBinaryOperator Interface contains below method:
applyAsLong
Let’s discuss this method:
applyAsLong
This method performs operation on the given arguments and return the long-valued result.
long applyAsLong(long left, long right);
Lets understand above mentioned method through below example:
Example. ‘applyAsLong’ method
import java.util.function.LongBinaryOperator;
public class LongBinaryOperatorInterfaceJava8Example {
public static void main(String[] args) {
System.out.println("LongBinaryOperator Interface - 'applyAsLong' example \n");
//1. Annonymous Implementation
LongBinaryOperator annonymousObj = new LongBinaryOperator() {
@Override
public long applyAsLong(long x, long y) {
return x + y;
}
};
//2. Lambda Implementation
LongBinaryOperator lambdaObj = (x, y) -> x + y;
//1
System.out.println("Result : " + annonymousObj.applyAsLong(5, 6));
//2
System.out.println("Result : " + lambdaObj.applyAsLong(5, 6));
}
}
Output:
LongBinaryOperator Interface - 'applyAsLong' example Result : 11 Result : 11
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.
LongBinaryOperator Interface in Java 8 with Examples...!!! Share on X
Do you like this Post? – then check my other helpful posts:
- Passing Function as a Parameter in another Method in Java 8
- Collection sorting using Lambda in Java 8
- Supplier Interface in Java 8 with Examples
