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Note: The String class is immutable, so that once it is created a String object cannot be changed. If there is a necessity to make a lot of modifications to Class Notes. Class: XII. Topic: Unit-3: Fundamentals of Java Programming (Contd..) Subject: Information Technology (802). Call a Method. To understand the effect of nested scopes, consider the following program: // demonstrate block scope. class Scope. { public static void main(String args[]). {.JAVA PROGRAMMING. Page 6. Example: public class CommentExample1 { public static void main(String[] args) { int i=10;//Here, i is a variable. Java String class with methods such as concat, compareTo, split, join, replace, Note: String objects are stored in a special memory area known as the Strings in Java. ?standard objects with built-in language support. • String - class for immutable (read-only) strings. • StringBuffer - class for mutable charAt(11) refers to the 12th element. Note that the index ranges from 0 to length() - 1. 6. String class overrides the equals method A class is a type of objects. string: An object storing a sequence of text characters. Last character's index : 1 less than the string's length.