Table of Contents Introduction String in Java String in Kotlin Java vs Kotlin Differences Interview Questions Conclusion Introduction The String data type is used to store a sequence of characters (text) . Strings are one of the most commonly used data types in both Java and Kotlin, especially for handling user input, messages, and data processing. String in Java In Java, String is a class , not a primitive type. Strings in Java are immutable , meaning once created, their value cannot be changed. Stored as objects in the heap Immutable by design Supports String Pool for memory optimization Java Example String name = "CodeCrush"; name = name + " Corner"; System.out.println(name); Although it looks like the string is modified, Java actually creates a new String object . String in Kotlin In Kotlin, String is also a class and is immutable . Kotlin adds powerful features such as string templates and null safety...