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![]() On the other hand, to work with the screen in a specific graphical environment, these interfaces are implemented in each such environment separately. Java applications use these methods to place and move graphic objects, resize them, and interact with objects. AWT library classes implement these interfaces for building applications. In the first version of JDK, the problem was solved as follows: interfaces were developed containing methods for working with graphic objects. You need a class library that is independent of the specific graphics system. ![]() In Java technology, the matter is complicated by the fact that Java applications must work in any or at least in many graphical environments. Each class of such a library immediately describes a graphical component, controlled by the methods of this and other classes. To facilitate the creation of windows and their components, class libraries have been written: MFC, Motif, OpenLook, Qt, Tk, Xview, OpenWindows, and many others. Graphic APIs contain hundreds of functions. Each of them has its own rules for constructing windows and their components: menus, input fields, buttons, lists, scroll bars. There are many different graphics systems: MS Windows, X Window System, Macintosh.
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