Javascript2008-08-31
Form validation using Javascript
The tag supports an onsubmit event handler, which is triggered when the user tries to submit a form. You can use this event handler to perform validation: checking that all require
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Javascript2008-08-31
window.frames[i] in Javascript
The Window object defines the following properties. Non-portable, browser-specific properties are listed separately after this list. Note that the Window object is the Global objec
Read tutorialEJB2008-08-25
Managing Security in EJB
To simplify the development process for the enterprise bean provider, the implementation of the security infrastructure is left to the EJB container provider and the task of defini
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Difference Between Stateful and Stateless Session Beans
Session beans can either be stateful or stateless. With stateful beans, the EJB container saves internal bean data during and in between method calls on the client's behalf. With s
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Difference Between Session and Entity Beans
A session bean is an EJB that is created by a client and usually exists only for the duration of a single client-server session. A session bean usually performs operations such as
Read tutorialEJB2008-08-25
Required Classes/Interfaces That Must Be Provided for an Enterprise JavaBeans Component
Here we review the component architecture of EJBs. We also cover the required classes and interfaces for EJB, which include the home and remote interfaces, the XML deployment descr
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Interview2008-08-24
Question: How would you go about analyzing performance of an application?
When performance testing a Web application, several requirements must be
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Question: How is the MVC design pattern used in Struts framework?
In the MVC design pattern, a central Controller mediates application flow. The Controller delegates requests to an appropriate handler. The handlers are tied to a Model, and each h
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Question: What is the directory structure of a web application?
The directory structure of a web application consists of two parts.
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Question: Explain the life-cycle methods in JSP?
The generated servlet class for a JSP page implements the HttpJspPage interface of the javax.servlet.jsp package. The HttpJspPage interface extends the JspPage interface which intu
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Question: What is an output comment in JSP?
A comment that is sent to the client in the viewable page source.The JSP engine handles an output comment as uninterpreted HTML text, returning the comment in the HTML output sent
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Question: What is a Hidden Comment in JSP?
A comment that documents the JSP page but is not sent to the client. The JSP engine ignores a hidden comment, and does not process any code within hidden comment tags. A hidden com
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