Learn how to create, access, modify, compare, and convert strings in Java using the String class methods and features. This article covers the basics and advanced topics of strings.

Java developers use the Character, String, StringBuffer, and StringTokenizer classes to represent and manipulate text in programs. Learn how to create objects from these classes and examine their ...

1. Convert String to Character Array - Since strings in Java are **immutable**, we convert `s` to a **character array** (`arr`) to modify it efficiently.