Object interaction in object-oriented programming

An object-oriented program consists of a set of objects. The usage of isolated objects solves only a small number of tasks. Typically, they are the objects which exchange messages, i.e. interact with each other, that are of interest. The paper specifies one of the possible ways to organize object interaction and provides fragments of a programming code for a specific example. To visualize the message exchange between objects, interaction diagrams and sequence diagrams are described. The proposed methods can be used in teaching the object-oriented programming technology.