Advantages of Java Beans

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A Java Bean is a software component that has been designed to be reusable in a variety of different environments. There is no restriction on the capability of a Bean. It may perform a simple function, such as checking the spelling of a document, or a complex function, such as forecasting the performance of a stock portfolio. A Bean may be visible to an end user. One example of this is a button on a graphical user interface. A Bean may also be invisible to a user. Software to decode a stream of multimedia information in real time is an example of this type of building block. Finally, a Bean may be designed to work autonomously on a user's workstation or to work in cooperation with a set of other distributed components. Software to generate a pie chart from a set of data points is an example of a Bean that can execute locally. However, a Bean that provides real-time price information from a stock or commodities exchange would need to work in cooperation with other distributed software to obtain its data.

We will see shortly what specific changes a software developer must make to a class so that it is usable as a Java Bean. However, one of the goals of the Java designers was to make it easy to use this technology. Therefore, the code changes are minimal.

Advantages of Java Beans

A software component architecture provides standard mechanisms to deal with software building blocks. The following list enumerates some of the specific benefits that Java technology provides for a component developer:

  • A Bean obtains all the benefits of Java's "write-once, run-anywhere" paradigm. 
  • The properties, events, and methods of a Bean that are exposed to an application
    builder tool can be controlled.
  • A Bean may be designed to operate correctly in different locales, which makes it
    useful in global markets.
  • Auxiliary software can be provided to help a person configure a Bean. This software is
    only needed when the design-time parameters for that component are being set. It
    does not need to be included in the run-time environment.
  • The configuration settings of a Bean can be saved in persistent storage and restored
    at a later time.
  • A Bean may register to receive events from other objects and can generate events that
    are sent to other objects.

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Comments(6)


1. View Comment

I am very much thankfull to you in providing the concept in such a simple and easily understandable language to the users.

View Tutorial          By: c vijaychandar at 2010-05-05 10:14:59
2. View Comment

very nice

View Tutorial          By: subbu at 2011-12-03 13:49:32
3. View Comment

very nice content

View Tutorial          By: jagadeesh at 2012-04-25 06:24:03
4. View Comment

This says nothing meaningful.

So how having a non-args constructor makes my code reusable? And doesn't having setters for all fields compromise security? A field may not not need a setter, but rather be the result of computation.

Everyone uses the word bean, nobody seems to understand the advantages of writing your class as one, and when its suitable to do so. This is just generic examples of nothing...


View Tutorial          By: Andreas at 2012-09-23 23:01:01
5. View Comment

very nice

View Tutorial          By: Md Irshad Alam at 2014-10-29 18:58:53
6. View Comment

Can you please tell me what software to be installed to beans programs to run or please send me link to download..Thank you

View Tutorial          By: Heena Yeole at 2015-03-10 18:05:18

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