Models and Interfaces.
Projects have changed with the development of servers, cyberspace and programming languages such as C++ and java.
Java netbeans disks are shipped free from the Check republic for Java developer and enterprize projects. The CD is read and the application is installed on a home computer. PointBase database applications may be used if the installation wizard is successful.
Java programs are written and saved as (.java) text files. The programs ate compiled into (.class) files.
Java class files are stored on a directory. A subclass uses inheritance from a superclass. Interfaces are used to form an application.
Java classes are stored on a library. The library packages are downloaded and can be imported into a java program.