Free
Course

Java: Algorithms

Learn the basics of recursion and how to implement and analyze important algorithms in Java.

4.42 out of 5 stars
13,913 learners enrolled
  • Skill level

    Beginner
  • Time to complete

    Average based on combined completion rates — individual pacing in lessons, projects, and quizzes may vary
    3 hours
  • Certificate of completion

    Included with paid plans
  • Prerequisites

    1 course
    We suggest you complete the following courses before you get started with Java: Algorithms:
    • Learn Java: Loops and Arrays

About this course

This course is all about algorithms! We’ll start by looking into the concept of recursion — what does it mean for a method to call itself? Once we wrap our minds around this tricky concept, we’ll look at how to use recursion to solve some problems.

Next, we’ll start to think about how we can evaluate the effectiveness of our algorithms. There are so many ways to solve a single problem — how do you know if your solution is a good one? What does it even mean for one solution to be “better” than the other?

Finally, we’ll look at some of the most common sorting and searching algorithms. If you’re looking to sort a list of numbers, how would you do that? What about if you were trying to find a single word in the dictionary? We’ll write a few algorithms to solve these problems.

Syllabus

8 lessons • 6 quizzes

The platform

Hands-on learning

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Java: Algorithms course ratings and reviews

4.42 out of 5 stars
104 ratings
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  5. 1 star
  • 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.
    Chris
    Codecademy 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.
    Rodrigo
    Codecademy Learner @ UK
  • Brilliant learning experience. Very interactive. Literally a game changer if you're learning on your own.
    John-Andrew
    Codecademy Learner @ USA

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