Higher-Order Functions in Functional Programming in Java

👋 Hey everyone! Welcome back to the blog. In today’s blog post, we’re going to talk about an essential concept in functional programming — Higher-Order Functions.

By the end of this blog post, you’ll understand:
✅ What a higher-order function is
✅ How it works with real-world examples
✅ Why higher-order functions are powerful in Java
✅ The benefits of using them in programming

Let’s dive in! 🚀

1️⃣ What is a Higher-Order Function?

A Higher-Order Function (HOF) is a function that:
✔ Takes another function as an argument
✔ Returns a function as its result

💡 Think of a movie streaming app like Netflix:

• You have different filters to select movies (by genre, rating, release year).
• Instead of writing multiple filtering methods, you can pass different filter functions as arguments.

This is exactly how higher-order functions work!

2️⃣ Why are Higher-Order Functions Important?

✅ 1. Code Reusability

• Instead of writing multiple similar functions, you pass functions as arguments for flexibility.

✅ 2. Clean and Readable Code