So far, I was engaged in development 1C-systems. For a half of year, I learned Java language and now I want to work with Java. I am now even ready to work for free to gain experience in Java, Java-systems and Java-tools. Now I am studying java.net, Threads, Concurrent API, Fork/Join Framework, UI, java.awt, java.swing, Java 2D, LibGDX and game development. Time to time I am resolving tasks at geeksforgeeks.org site.