Author Archives: Stanislav_Panteleev

Java has a set of primitive-specialized functional interfaces of the form: ✅ XToYFunction These are used to convert from one primitive (or boxed) type to another efficiently — avoiding boxing and unboxing.

Let’s dive into BiPredicate<T, U>, a functional interface used to evaluate a boolean condition based on two inputs. ✅ BiPredicate<T, U>

Excellent question! Let’s break down the BiFunction<T, U, R> functional interface — one of the most versatile tools in Java functional programming. ✅ BiFunction<T, U, R> Takes two inputs: T and U Produces a result of type R It’s the … Continue reading →

Let’s talk about BiConsumer<T, U> — it’s part of the java.util.function package and is a functional interface used when you want to perform an action with two inputs and return nothing.

✅ 1. Supplier<T> Package: java.util.function Represents a function that supplies a result of type T, with no input. 🧠 Example:

These are used when you accept a value and do something with it, but you don’t return a result.

✅ 1. Predicate<T> Package: java.util.function A functional interface that takes one argument of type T and returns a boolean. 🧠 Example:

A generic interface that operates on two operands of the same type and returns a result of the same type. 🧠 Example:

✅ What do they have in common? They are all specialized versions of UnaryOperator<T> for Java primitives: double, int, and long.

Let’s dive into UnaryOperator<T>, which is a specialized version of Function<T, R> when input and output types are the same.