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How to implement ToIntBiFunction using lambda expression in Java?
ToIntBiFunction<T, U> is a built-in functional interface from java.util.function package. This interface accepts two parameters as input and produces an int-valued result. ToIntBiFunction<T, U> interface can be used as an assignment target for a lambda expression or method reference. It contains only one abstract method: applyAsInt() and doesn't contain any default or static methods.
Syntax
@FunctionalInterface
interface ToIntBiFunction<T, U> {
int applyAsInt(T t, U u);
}Example
import java.util.function.ToIntBiFunction;
public class ToIntBiFunctionTest {
public static void main(String args[]) {
ToIntBiFunction<Integer, Integer> test = (t, u) -> t * u;
System.out.println("The multiplication of t and u is: " + test.applyAsInt(10, 7));
System.out.println("The multiplication of t and u is: " + test.applyAsInt(8, 15));
}
}Output
The multiplication of t and u is: 70 The multiplication of t and u is: 120
Updated on: 14-Jul-2020
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