Last Updated : 11 Jul, 2025
The
ToIntBiFunction Interfaceis a part of the
java.util.functionpackage which has been introduced since Java 8, to implement
functional programmingin Java. It represents a function which takes in two arguments of type T and U and produces an int-valued result. This functional interface takes in two generics, namely:-
The lambda expression assigned to an object of ToIntBiFunction type is used to define its
applyAsInt()which eventually applies the given operation on its two arguments. It is similar to using an object of type
BiFunction<T, U, Integer>. The ToIntBiFunction interface has only one function:
applyAsInt()This method accepts two arguments of type T and U and produces an int-valued result.
Syntax:int applyAsInt(T t, U u)Parameters:
This method takes in two parameters:
This method returns an int-valued result. Below is the code to illustrate applyAsInt() method:
Program Java
import java.util.function.ToIntBiFunction;
public class Main {
public static void main(String args[])
{
ToIntBiFunction<Integer, String>
ob = (a, b) -> a + Integer.parseInt(b) * 3;
// Using applyAsInt() method
System.out.println(ob.applyAsInt(3, "10"));
}
}
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