Objected-Oriented programming 2 builds on objected-oriented programming I and it utilizes coding skills acquired in Object-oriented programming 1 course to help the learner build advance software systems, using techniques such as use of graphical user interface tools provided by various Integrated Development Environment - IDE systems. Objected-Oriented programming is a term loosely applied to mean any kind of programming that uses a programming language with some object oriented constructs or programming in an environment where some object oriented principles are followed. Compared with procedural programming, a superficial examination of codes written in both styles would reveal that object-oriented codes tends to be broken down into vast numbers of small pieces, with the hope that each piece will be trivially verifiable.