Top 200+ Java J2EE Interview Questions and Answers - 1

Question: 1

What is Java Beans component?

A java class can be maintained by tools and composed into applications.

A JavaBeans component must adhere to certain property and event interface conventions.

Question: 2

What is CORBA?

Common Object Request Broker Architecture.

A language independent distributed object model specified by the OMG.

Question: 3

What is backing bean?

A Java Beans component that corresponds to a JSP page that includes Java Server Faces components.

The backing bean defines properties for the components on the page and methods that perform processing for the component.

This processing includes event handling, validation and processing associated with navigation.

Question: 4

What is URN?

Uniform resource name. A unique identifier that identifies an entity but doesn’t tell where it is located.

A system can use a URN to lookup an entity locally before trying to find it on the Web. It also allows the web location to change, while still allowing the entity to be found.

Question: 5

What is Web component?

A component that provides services in response to requests; either a servlet or a JSP page.

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