
Explore unbounded wildcards in Java generics, using the question mark to print lists of any type while retrieving elements as objects. You can't add elements to a wildcard list.
Explore how upper bound wildcards enable general, type-safe list operations by treating elements as numbers or subtypes, improving compactness over generic methods.
Explore the generic method versus wild card approaches for parameter dependencies, illustrated by a mutable pair reset example and type inference that lets numbers and objects work together.
Java Generics is extremely important in the Java Ecosystem. Without a deep understanding of Generics, it is now difficult to understand the Javadoc of Java Libraries and applications. We are constantly bombarded with methods which contain a confusing sequence of "?" , "? extends T" or "? super T" .
WHAT THE LEARNERS ARE SAYING:
5 STARS - I took this course as a refresher. It goes through a lot of useful topics in generic, records and optional. It should be helpful for those who are preparing for the Java programmer certification exam.
5 STARS - Excellent course in Java Generics! Clear explanations, concise examples, and engaging delivery made complex concepts easy to grasp. Highly recommended for anyone looking to master Java generics.
5 STARS - As usual excellent course delivered by Viraj! Thank you very much.
5 STARS - Great explanation with Examples
5 STARS - A must have course for professionals who use java for living. Thanks and congratulations to Viraj on delivering yet another quality content! I am big fan of his work!
This course will take a deep look at Java Generics in a intuitive way without any fluff.
Why is Java Generics required ?
How are Java Generics internally implemented ? And why ?
What are Parameterized Types and Raw Types ?
What are unbounded and bounded Wildcards ?
How do Arrays and Generic Types differ ?
How are Java Generics used in Collections, Java Optional and Streams ?
How to create your own Generic Types ?
Along the way, we will also learn quite a bit about Java Record, Java Optional, Intersectional Types and Nested classes. There will be constant Quizzes to reinforce the concepts. All of this will make you an expert in Java Generics and how they can be used effectively while writing Java code. At the end of the course, you will be able to use Java Generics comfortably as well as fully understand the Javadoc of complex methods.
REMEMBER… I'm so confident that you'll love this course that we're offering a FULL money-back guarantee for 30 days! So it's a complete no-brainer, sign up today with ZERO risk and EVERYTHING to gain.