Description: An inner class in Kotlin is a class defined within another class. This structure allows the inner class to access the members of the outer class, even those that are private. Inner classes are useful for logically grouping classes that are only used in a specific context, improving code organization and readability. Additionally, inner classes can be instantiated without needing a reference to the outer class, providing flexibility in their use. In Kotlin, inner classes are declared using the ‘inner’ keyword, which distinguishes them from nested classes that do not have access to the outer class’s members. This feature is particularly valuable in object-oriented programming, as it allows encapsulating related behaviors and data, facilitating the creation of complex data structures and the implementation of design patterns such as the observer pattern or the factory pattern. In summary, inner classes in Kotlin are a powerful tool for code organization and encapsulation, allowing for greater cohesion and better management of complexity in software applications.
