This application is an analog of Yandex.Metro. It shows the shortest path between two stations.
Firstly, choose two stations by clicking on them, then push Start button, it will highlight the shortest path after Start.
To show all names of stations on this path click Show button. The list of stations will appear in the left blue box.
To quit the app push Quit button.
All errors produced during app working will appear in the right blue box.