In this work we create, process and store student grades in lessons. The saving will be done in text files. The main classes of the application are:

1. class Student for the description of students. Private fields include student name, student surname, registration number, semester of study. The class include 2 constructors, set and get methods as well as a toString () method.

2. class Lesson for course description. Private fields include the name of the course, its code and the semester of study. The class include 2 constructors, set and get methods as well as a toString () method.

3. class Enroll for course registration. Private fields include the student's registration number, the course's code and the student's grade in this course. The class include 2 constructors, set and get methods as well as a toString () method.

4. class StudentFramefor the implementation of the GUI. The private fields of the application includes the following

1. ArrayList mstudents for student storage.

2. ArrayList mlessons for storing lessons.

3. ArrayList menrolls to store course statements.