Java components are Java libraries or Java Class libraries, JavaBeans or EJBs that allow you to reuse your own Java code or Java code written by someone else within your Java program or Java application. These Java libraries will include specific functionality that you can integrate into your Java project, perhaps allowing you to support a new feature that a user has requested you to add, such as transferring a file by FTP or HTTP or providing some sort of eCommerce capability to your Web site, such as authorizing a credit card. By reusing your own Java code you save time and improve the modular design and quality of your software. By reusing code written by someone else, you not only save time and effort, you also get to add their knowledge or expertise to your application, enabling you to support new functions and features inside your app that were not possible before.
JavaBeans or Java Beans are reusable software components for Java that can be included in your Java app to provide visual interaction for the user with the form or screen, they typically give your Java application user interface (UI) controls, such as buttons, data entry boxes, text editors or they can be used to present datatables using a Java datagrid bean and draw charts or graphs.
There are also other forms of Java component listed here, such as EJB components or Enterprise Java Beans (EJBs), these Enterprise JavaBeans are server-side non-visual Java components that can be bolted together in a modular manner to provide business logic and other functions in your J2EE environment. For example, we have sophisticated EJBs for adding complex financial calculations or statistical probability functions to your applications.
The Java Class Library products are the most numerous and include Java Classes that are: Java datagrids, Java spreadsheets, Java Math & Stats libraries, Java charting libraries and Java graphing classes, Java calendar or Java Gantt class products for planning and scheduling, Java speech recognition classes, text editing, word processing and spell checking Java classes and much, much more.
Finally you will also find Java Applet and Java Servlet commercial products in this Java product gallery. These Java Applets allow you to present data charts, graphs, barcodes and the Java Servlets provide text & HTML editing, spell checking, file handling, data conversion and PDF file creation functionality.
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