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...!!! Click To Tweet
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.
1 | long applyAsLong(long left, long right); |
Lets understand above mentioned method through below example:
Example. ‘applyAsLong’ method
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | 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)); } } |
1 2 3 4 | LongBinaryOperator Interface - 'applyAsLong' example Result : 11 Result : 11 |
LongBinaryOperator Interface in Java 8 with Examples...!!! Click To Tweet
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