Skip to content
Related Articles

Related Articles

Save Article
Improve Article
Save Article
Like Article

Java.util.function.IntBinaryOperator interface with Examples

  • Last Updated : 18 Jul, 2019

The IntBinaryOperator interface was introduced in Java 8. It represents an operation on two int values and returns the result as an int 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.


Attention reader! Don’t stop learning now. Get hold of all the important Java Foundation and Collections concepts with the Fundamentals of Java and Java Collections Course at a student-friendly price and become industry ready. To complete your preparation from learning a language to DS Algo and many more,  please refer Complete Interview Preparation Course.

  1. applyAsInt(): This function takes two int values, performs the required operation and returns the result as an int.
    public int applyAsInt(int val1, int val2)

Example to demonstrate IntBinaryOperator interface as a lambda expression .

// Java program to demonstrate IntBinaryOperator
import java.util.function.IntBinaryOperator;
public class IntBinaryOperatorDemo {
    public static void main(String[] args)
        // Binary operator defined to divide
        // factorial of two numbers
        IntBinaryOperator binaryOperator = (x, y) ->
            int fact1 = 1;
            for (int i = 2; i <= x; i++) {
                fact1 *= i;
            int fact2 = 1;
            for (int i = 2; i <= y; i++) {
                fact2 *= i;
            return fact1 / fact2;
        System.out.println("5! divided by 7! = "
                           + binaryOperator.applyAsInt(5, 7));
        System.out.println("7! divided by 5! = "
                           + binaryOperator.applyAsInt(7, 5));
5! divided by 7! = 0
7! divided by 5! = 42


My Personal Notes arrow_drop_up
Recommended Articles
Page :