Chapter-08: Null No More: Master Java's Optional Class for Flawless Code!
Are you tired of dealing with those pesky null checks in your Java code? Look no further! In this captivating and informative video, we delve into the game-changing Optional class in Java. Discover why it's the ultimate solution for eliminating null checks and enhancing your code's reliability.
Join us on a journey where we first explore the undeniable need for the Optional class and compare it with traditional null checks. Witness the transformation as we reveal how Optional class can revolutionize your programming experience.
But what exactly is the Optional class? Fear not! We break it down step by step, using engaging animations to make even the most complex concepts easily understandable. Watch as the power of Optional unfolds before your eyes!
Next, we delve into a treasure trove of methods that retrieve values from Optional, such as get(), orElse(), orElseGet(), and orElseThrow(). These methods will become your secret weapons for dealing with null values effortlessly.
We don't stop there! Discover a plethora of techniques to check if a value exists within an Optional using methods like isEmpty(), isPresent(), ifPresent(), and ifPresentOrElse(). These methods will empower you to handle different scenarios like a pro.
But wait, there's more! Learn how to generate Optional values with ease using methods like of(), ofNullable(), and empty(). These handy tricks will make your code more concise and efficient.
And that's not all! We unveil the magic of manipulating Optional values through methods like filter(), map(), flatMap(), or(), and stream(). Witness how these techniques enable you to transform, combine, and streamline your Optional values effortlessly.
Whether you're a seasoned Java developer or just starting your coding journey, this eye-catching video is a must-watch! Say goodbye to null checks and embrace the future of programming with the Optional class. Join us now and take your Java skills to the next level!
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00:00:00 Introduction
00:00:16 Why Optional Class?
00:04:51 Demo0 : Identify need of Optional Class
00:14:05 What is an Optional Class?
00:17:49 Demo1 : Methods to retrieve value from Optional Value: get(), orElse(), orElseGet(), orElseThrow()
00:34:30 Demo2 : Methods to check if value exists in Optional Value: isEmpty(), isPresent(), ifPresent(), ifPresentOrElse()
00:44:36 Demo3 : Methods to generate Optional Value: of(), ofNullable(), empty()
00:54:53 Demo4 : Methods to manipulate Optional Value: filter(), map(), flatMap(), or(), stream()
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Download the code from GitHub Repository:
https://github.com/abhishekvermaa10/O...
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