• Contains a directory of standard, frequently used operations in Kotlin. • Developing since 2015, tested by time and thousands of users. • The best code examples from books and online resources optimized for search. • Examples of design patterns for professional development. • Assistance in preparing for an exam or interview. • Quick search by topic code or name. • Offline access to all examples. • A short, offline, help system. In the application, some examples are available for an add