This thesis deals with the development of the program, which is used for sale of medication. The theoretical part is divided into five parts. First, there is an introduction of object-oriented programming globally as a whole. The following section concerns with Java programming language. The emphasis is put on specific features of this language and basic syntax. The chapter also includes objects and their basic principles of use. Next part specializes in SQL. and describes the basic clauses. Chapter UML is mentioned just partially. The main focus is on different perspectives of UML. In last part there is a division of companies based on legal form, including the description of each type. The basis of the practical part is to create a program code according to the assignment. Initially, a profile of the company, for which the program has been created, is introduced including the specifications and their requirements. Then the proposed solution is described. In the technical part a preparation of development environment is elaborated, which is followed by a detailed description of the functioning of the program. The end of the practical part is dedicated to a description of individual classes, in which their functionality is gradually explained. The result of the thesis is the output data written to the file. This file is used by the company to promote sales.