Udemy – Functional Programming in Java (Includes Java Collections)

Learn Java Lambda Expressions, Functional Interfaces, Stream API, and Collections Framework. Write Clean & Concise Code

Are you looking to enhance your Java skills with functional programming? Do you want to write cleaner, more efficient, and more maintainable code? If so, this course is for you! Functional Programming in Java is designed to help Java developers transition from imperative to functional programming paradigms using lambda expressions, functional interfaces, and the Java Stream API.

By the end of this course, you’ll not only understand the theoretical foundations of functional programming but also gain hands-on experience with real-world coding examples. Whether you’re a beginner looking to explore functional programming or an experienced developer seeking to refine your skills, this course provides everything you need to master Java’s modern functional programming capabilities.

What is Functional Programming?

Functional programming is a declarative way of writing code that focuses on what to do rather than how to do it.

It avoids changing state and mutable data.

Functions are treated as first-class citizens.

It makes code more concise, predictable, and easier to test.

Java has embraced functional programming since Java 8, introducing features like lambdas, functional interfaces, streams, and method references.

Why Learn Java Collections Framework Before Functional Programming?

Functional programming in Java often involves operations on collections, especially using the Java Stream API. Knowing how collections work helps you understand how functional programming manipulates data effectively.

So, I have added 7+ hours of content on the complete Java Collections framework to this course. Before jumping into Functional Programming, master Java Collections first!

What You Will Learn

This comprehensive course covers everything from the fundamentals of functional programming to advanced topics, ensuring you develop a strong understanding of lambda expressions, functional interfaces, Java Streams, and Collections framework. You will explore:

-> Introduction to Functional Programming

Understanding the paradigm shift from imperative programming to functional programming

How functional programming improves code readability, reusability, and scalability

Pure Functions in Functional Programming

Functions as First-Class Objects in Functional Programming

Higher-order Functions in Functional Programming

Rules of Pure Functional Programming

-> Lambda Expressions in Java

The power of anonymous functions

Writing clean and concise code using lambda expressions

Practical examples and use cases of lambda functions

-> Functional Interfaces in Java

Understanding built-in functional interfaces: Function, Predicate, Supplier, and Consumer

Exploring BiFunction, BiPredicate, and BiConsumer for handling multiple arguments

Working with UnaryOperator and BinaryOperator

-> Primitive Functional Interfaces

Specialized interfaces for handling primitive types like int, long, and double

How these interfaces optimize performance in functional programming

-> Java Stream API

Introduction to Streams and Pipelines for Efficient Data Processing

Using filter(), map(), flatMap(), and sorted() for data transformation

Applying collect(), foreach(), distinct(), limit(), and skip()

Aggregation techniques using count(), min(), max()

Handling conditions with anyMatch(), allMatch(), and noneMatch()

-> Java Stream Programs for Beginners

-> Optional Class to handle null pointer exceptions

-> Method References

-> Learn Java Collections Framework in-depth

ArrayList

LinkedList

HashSet

TreeSet

HashMap

LinkedHashMap

TreeMap

Stack

Why Learn Functional Programming in Java?

Functional programming is becoming increasingly important in modern software development. Major Java versions (Java 8 and later) have embraced functional programming concepts, making it an essential skill for Java developers. Here’s why you should learn it:

-> Write Less Code: Lambda expressions and streams reduce boilerplate code
-> Improve Readability: Functional code is easier to read and maintain
-> Boost Performance: Streams allow parallel execution, making applications faster
-> Adopt Modern Java Practices: Functional programming is widely used in Spring, Hibernate, and Java frameworks
-> Increase Career Opportunities: Companies seek developers proficient in functional programming

Course Features & Benefits

-> 100% Practical Learning – Hands-on coding with real-world scenarios
-> Clear & Concise Explanations – No unnecessary theory, only what you need
-> Step-by-Step Guidance – Learn through structured modules and examples
-> Taught by Experienced Instructors – Get insights from Java professionals
-> Lifetime Access & Updates – Stay up to date with modern Java trends
-> Q&A Support – Get help whenever you need

Get Started Today!

Functional programming is the future of Java development, and mastering it will boost your coding skills and career opportunities. Whether you’re a beginner or an experienced developer, this course will empower you with the knowledge and tools needed to write better Java code.

Start Learning Today! Join now and become an expert in Functional Programming in Java.

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