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edX

Introduction to Regular Expressions in Java

via edX

Overview

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This beginner path introduces regular expressions in Java, starting with core pattern-matching concepts, special characters, and techniques for matching specific parts of a string.

You will progress to capture groups, input validation, matching flags, lookaheads, and text transformations. You will also work with large files, international text, and strategies for improving regex performance and readability.

The path concludes with building a maintainable data-processing pipeline that applies regular expressions to practical extraction, cleaning, and transformation tasks.

Syllabus

  • Write Java regular expressions to find and match text patterns
  • Extract structured information with capture groups
  • Validate user input using regex patterns, flags, and lookaheads
  • Clean, reformat, and transform text in Java
  • Process large text files and Unicode content efficiently
  • Optimize regex patterns for performance and maintainability
  • Build a regex-based data-processing pipeline

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