JavaBeans are reusable software components designed for the Java 2 Platform, Standard Edition (J2SE). Java Beans are completely written in the Java and designed to be manipulated visually by a software development environment. Java Beans can be developed and assembled easily to create sophisticated applications. JavaBeans technology is based on the JavaBeans specification.
JavaBeans allows us to make concerted effort for addressing the multitude of challenges that must be overcome by a high-power software component technology. The advantages of java beans are that JavaBeans has more than a good chance of becoming a hit with the software development community, JavaBeans has as a component technology developed entirely from scratch with no limitations imposed from a prior technology, except maybe from Java. We can also say that JavaBeans is an entirely new component technology mainly designed to deal with the problems software developers face today.