Free
Course

Learn Intermediate Java: Regular Expressions

Learn about regex, or regular expressions, and how to work with them in Java.

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  • Skill level

    Intermediate

  • Time to complete

    Approx. 1 hour

  • Certificate of completion

    Included with paid plans

  • Prerequisites

    1 course

About this course

A regex, or regular expression, is a pattern represented by a sequence of characters. They’re used in search engines, word processors, text editors, and many other places due to their general use cases and base functionality. Many programming languages provide regex capabilities either from libraries or built straight into the language. Java is one such language that has an entire package dedicated to regex.

Skills you'll gain

  • Use quantifiers

  • Implement the Pattern and Matcher classes

  • Use capture groups and escape characters

Syllabus

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The platform

Hands-on learning

Don’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.
Animated demonstration of running code in Codecademy's learning environment

Projects in this course

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    Codecademy Learner @ USA
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Unlock additional features with a paid plan

  • Practice Projects

    Guided projects that help you solidify the skills and concepts you're learning.

  • Assessments

    Auto-graded quizzes and immediate feedback help you reinforce your skills as you learn.

  • Certificate of Completion

    Earn a document to prove you've completed a course or path that you can share with your network.
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