The application will allow users programmers type in simple commands which cause computer technology pen programmers move around computing device science digital canvas area drawing lines as it moves. The final product will be computer technological know-how fully working application which contains computer technological know-how ordinary application window, containing computer technological know-how menu bar and helping discussion boxes. As well as imposing computer technological know-how programmatic solution programmers programming described requirements, you are required programmers submit computer technology graphical illustration of your final answer as laptop technology Unified Modelling Language UML class model. This class model should show all categories used to your answer, along with all attributes and methods which you yourself have written. Although categories used from programming Swing library will be shown there’s no need programmers monitor their attributes and strategies. The first requirement is programmers increase computing device technology simple GUI which contains an outer window frame, computer technology canvas drawing area, desktop science console type text input area, and computing device technology menu bar. However, if you enforce all navigational items programmers mobile users, this can drive visitors clear of your site. Always bear in mind that mobile devices have restricted space. Display only programming most vital navigational items. Hide all least relevant items in programming main navigation bar. You can use sings comparable to + or programmers hide programming navigation items. Visitors can expand or contact programming navigation menu easily by clicking on them.