Web Reference: Oct 11, 2025 ยท In Java, a String represents a sequence of characters used for storing and manipulating text. It is immutable and provides many built-in methods for operations like concatenation, comparison, and manipulation. Java provides several methods to modify strings. These methods allow you to create new strings by modifying the content of existing strings, which are immutable in Java. This tutorial will cover various string-modifying methods with examples. The class String includes methods for examining individual characters of the sequence, for comparing strings, for searching strings, for extracting substrings, and for creating a copy of a string with all characters translated to uppercase or to lowercase.
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