Overview of structural data types (records, sets, files). Object-oriented approach to programming (classes, objects, methods, attributes). Records. Fields and subfields of a record, union records. Declaring and usage. Files. Text files and typed files, sequential and random access files. File buffer. File open (read, write, edit) and close. Reading and writing records to a text file and typed file. Sorting data in files, exceptions. Sorting text files. Sorting files by using an index. Sorting outside of files. Recursion: direct and indirect recursion. Advantages and disadvantages. Data exchange. Examples. Dynamic memory allocation. Pointers, allocating and freeing memory. Stack and its types. Sorting a dynamic structure. Debugging a program: scanning, checkpoints, debuggers. Decomposing a program. Documentation. Managing a software project.