I am undergraduate student at Technological Educational Institute of Thessaly, in Department of Computer Science and Telecommunications (CST). I am developing for the last 4 years Windows Form Applications with C# and Java, and from the past year I am developing Android and Windows 8.1 applications. Furthermore, I am the official speaker and founder of a development team named "Android Dev Team" at CST, and our goal is to teach android development to our colleagues using efficient java code.