Time to completeApprox. 2 hours
Certificate of completionIncluded with paid plans
Prerequisites1 courseWe suggest you complete the following courses before you get started with Learn Intermediate Java: Generics and Collections:
- Learn Java
About this course
Generics allow us to create generic classes and methods by specifying a type parameter. In this course, you’ll learn about generics in Java, their use cases, and how these topics can help you create scalable, type-safe code. Then you’ll explore the Java Collections framework, which helps overcome the limits of an array and provides more complex functionality to meet different collection needs.
Skills you'll gain
Implement generics in Java
Use wildcards in your code
Implement Sets, Maps, and more
Hands-on learningDon’t just watch or read about someone else coding — write your own code live in our online, interactive platform. You’ll even get AI-driven recommendations on what you need to review to help keep you on track.
Projects in this course
Reviews from learners
- The progress I have made since starting to use codecademy is immense! I can study for short periods or long periods at my own convenience - mostly late in the evenings.ChrisCodecademy Learner @ USA
- I felt like I learned months in a week. I love how Codecademy uses learning by practice and gives great challenges to help the learner to understand a new concept and subject.RodrigoCodecademy Learner @ UK
- Brilliant learning experience. Very interactive. Literally a game changer if you're learning on your own.John-AndrewCodecademy Learner @ USA
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Practice ProjectsGuided projects that help you solidify the skills and concepts you're learning.
AssessmentsAuto-graded quizzes and immediate feedback help you reinforce your skills as you learn.
Certificate of CompletionEarn a document to prove you've completed a course or path that you can share with your network.