Tutorials under 'Regex'

Using Scanner and Regex to Parse String Input in Java – Robust, Flexible, and Efficient Techniques

Learn how to use Scanner and Regex in Java to parse string input efficiently. Covers tokens, delimiters, capture groups, edge cases, and best practices.

Extracting and Replacing Substrings in Java – Complete Guide with Examples

Learn how to extract and replace substrings in Java using `substring()`, `replace()`, and `replaceAll()`. Covers regex, edge cases, and best practices.

Case Conversion and Character Manipulation in Java – Safe, Efficient, and Unicode-Aware

Learn how to convert cases and manipulate characters in Java Strings. Covers Unicode, performance tips, and best practices with code examples