Chapter-06: Supercharge Java Projects with Lambdas, Functional Interfaces & Method References
Welcome to a comprehensive tutorial that will empower you with the knowledge and skills to effectively use lambda expressions and functional interfaces in your Java projects. In this video, we'll cover everything you need to know about lambdas, from their basic syntax to advanced concepts like method references.
Throughout this tutorial, we'll dive into practical demos, starting with the fundamentals and gradually progressing to more complex scenarios.
We'll begin by explaining the concept of lambda expressions and their role in facilitating functional programming in Java. You'll also gain a clear understanding of functional interfaces and their relationship with lambdas.
In the demos, we'll demonstrate the step-by-step process of implementing functional interfaces using classes, followed by converting them into anonymous inner classes. Finally, we'll show you how to transform them into concise lambda expressions. This approach will help you understand the gradual evolution of the code.
Next, we'll explore the usage of default functional interfaces provided by Java, such as Function, Predicate, Consumer, Supplier, BiFunction, BiPredicate, and BiConsumer. These interfaces offer powerful capabilities and can replace custom functional interfaces in many scenarios.
We'll also address the handling of exceptions within lambda expressions, including both checked and unchecked exceptions. We'll guide you through best practices for exception handling in lambda expressions.
To conclude the tutorial, we'll introduce method references, a concise syntax for referring to existing methods. Through practical demos, each showcasing a different method reference, you'll further enhance your functional programming skills.
Join us on this educational journey, where you'll gain the expertise to effectively leverage lambdas, functional interfaces, and method references. Whether you're a Java beginner or an experienced developer, this tutorial will equip you with the tools to write cleaner and more expressive code. Don't miss out—watch the full video now and supercharge your Java programming skills!
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00:00:00 Introduction
00:00:11 What is a Lambda Expression?
00:01:32 What is a Functional Interface?
00:03:00 Demo 1 - Single-Argument Lambda with a Return Type
00:20:50 Demo 2 - Single-Argument Lambda with a Boolean Return Type
00:25:30 Demo 3 - Single-Argument Lambda with Void Return Type
00:28:34 Demo 4 - No-Argument Lambda with a Return Type
00:32:06 Demo 5 - Double-Argument Lambda with a Return Type
00:35:23 Demo 6 - Double-Argument Lambda with a Boolean Return Type
00:37:25 Demo 7 - Double-Argument Lambda with Void Return Type
00:40:49 Demo 8 - Double-Argument Lambda with Checked and Unchecked Exceptions
00:49:07 Exploring default Functional Interfaces
00:49:56 Demo 1 - Using Function functional interface
00:54:55 Demo 2 - Using Predicate functional interface
00:58:22 Demo 3 - Using Consumer functional interface
01:01:40 Demo 4 - Using Supplier functional interface
01:04:05 Demo 5 - Using BiFunction functional interface
01:06:30 Demo 6 - Using BiPredicate functional interface
01:07:46 Demo 7 - Using BiConsumer functional interface
01:10:36 Demo 8 - Throwing Checked and Unchecked Exceptions from default functional interface
01:15:49 What are Method References?
01:18:40 Demo9 - Understanding Static Method Reference
01:32:28 Demo10 - Understanding Instance Method Reference of a particular object
01:38:05 Demo11 - Understanding Instance Method Reference of an arbitrary object of a particular type
01:42:45 Demo12 - Understanding Constructor Reference
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Download the code from GitHub Repository:
https://github.com/abhishekvermaa10/L...
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Learn about Generics: • Chapter-02: How Generics Simplify Dat...
Learn about Exception Handling: • Chapter-01: Java Exception Handling: ...
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