Computer languages {Java language} can be object oriented. Java has classes with methods. A main static method may be first. Methods use "get" and "put" for getting and setting values, "is" or "has" for boolean test functions, and action verbs for methods that change state or take action in other ways. Methods should proceed from public to protected to private. Within each group, methods should start with constructors, then instance methods, then static methods. Java has local and global class member instance variables and static member variables. Java has constants. Create output using System.out.println. The entire system has to be layered and buildable in a single pass. A script defines the order in which the packages are built. Java 2 Enterprise Edition (J2EE) defines application servers for Enterprise Java Beans (EJB), Servlets, and Java Server Pages (JSP), to make web-enabled applications.
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Date Modified: 2022.0224