Java Functional Programming
Using Functional Programming in Java, for highly maintainable projects. Learn to write cleaner, more expressive code using lambdas, streams, and functional design patterns.
Overview
Functional programming has become an essential paradigm in modern Java development. Since Java 8, the language has embraced functional concepts that enable developers to write more concise, readable, and maintainable code.
This course provides a deep dive into functional programming concepts and their application in Java. You will learn to leverage lambdas, method references, the Streams API, and functional interfaces to solve complex problems elegantly. Through practical exercises, you will understand how to combine object-oriented and functional programming styles to create robust, maintainable applications.
Objectives
The main objectives of the Java Functional Programming course are:
- Understanding functional programming principles: immutability, pure functions, and higher-order functions
- Mastering lambda expressions and method references
- Working effectively with functional interfaces (Function, Predicate, Consumer, Supplier)
- Advanced Stream API operations: parallel streams, collectors, and custom collectors
- Using Optional effectively for null-safe programming
- Applying functional design patterns and refactoring imperative code
- Understanding when to apply functional vs. object-oriented approaches
Duration and Schedule
The standard course duration is 3 days, with 6 or 7 hours of teaching each day. Additional time can be allocated for code review and refactoring exercises.
The scheduling per day:
- Day 1: Functional programming fundamentals, lambdas, and functional interfaces
- Day 2: Streams API deep-dive, collectors, and parallel processing
- Day 3: Optional, functional patterns, refactoring, and hands-on workshop
Target Audience
This course is designed for Java developers wanting to leverage functional programming:
- Java Developers - looking to modernize their coding style
- Teams - adopting functional patterns in their codebase
- Technical Leads - establishing coding standards and best practices
- Developers from Functional Languages - applying their knowledge in Java
- Anyone - interested in writing cleaner, more expressive Java code
Write Better Java Code
Contact us to learn how functional programming can improve your code quality
Prerequisites
Here are the prerequisites for the Java Functional Programming course:
- Solid Java knowledge: comfortable with Java syntax and OOP concepts
- Java 8+ familiarity: basic awareness of lambda syntax is helpful
- Collections experience: understanding of Java collections framework
- Problem-solving mindset: willingness to think about problems differently
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