1.What is JSP?JavaServer Pages JSP is a technology for developing web pages that support dynamic content which helps developers insert java code in HTML pages by making use of special JSP tags, most of which start with <% and end with %>. 2.What are advantages of using JSP?JSP offer several advantages as listed below:
3.What are the advantages of JSP over Active Server Pages ASP?The advantages of JSP are twofold.
First, the dynamic part is written in Java, not Visual Basic or other MS specific language, so it is
more powerful and easier to use. 4.What are the advantages of JSP over Pure Servlets?It is more convenient to write andtomodify! regular HTML than to have plenty of println statements
that generate the HTML. Other advantages are:
5.What are the advantages of JSP over Server-Side Includes SSI?SSI is really only intended for simple inclusions, not for "real" programs that use form data, make database connections, and the like. 6.What are the advantages of JSP over JavaScript?JavaScript can generate HTML dynamically on the client but can hardly interact with the web server to perform complex tasks like database access and image processing etc. 7.What are the advantages of JSP over Static HTML?Regular HTML, of course, cannot contain dynamic information. 8.Explain lifecycle of a JSP.?A JSP Lifecycle consists of following steps:
1.Parsing the JSP. 2.Turning the JSP into a servlet. 3.Compiling the servlet. 9.What is a sciptlet in JSP and what is its syntax?A scriptlet can contain any number of JAVA language statements, variable or method declarations,
or expressions that are valid in the page scripting language.
Following is the syntax of Scriptlet: 10.What are JSP declarations?A declaration declares one or more variables or methods that you can use in Java code later in the
JSP file. You must declare the variable or method before you use it in the JSP file. 11.What are JSP expressions?A JSP expression element contains a scripting language expression that is evaluated, converted to
a String, and inserted where the expression appears in the JSP file.
The expression element can contain any expression that is valid according to the Java Language
Specification but you cannot use a semicolon to end an expression.
Its syntax is: 12.What are JSP comments?JSP comment marks text or statements that the JSP container should ignore. A JSP comment is
useful when you want to hide or "comment out" part of your JSP page.
Following is the syntax of JSP comments: 13.What are JSP Directives?A JSP directive affects the overall structure of the servlet class. It usually has the following form: 14.What are the types of directive tags?The types directive tags are as follows:
15.What are JSP actions?JSP actions use constructs in XML syntax to control the behavior of the servlet engine. You can
dynamically insert a file, reuse JavaBeans components, forward the user to another page, or
generate HTML for the Java plugin.
Its syntax is as follows: 16.Name some JSP actions.?jsp:include, jsp:useBean,jsp:setProperty,jsp:getProperty, jsp:forward,jsp:plugin,jsp:element, jsp:attribute, jsp:body, jsp:text 17.What are JSP literals?Literals are the values, such as a number or a text string, that are written literally as part of a
program code. The JSP expression language defines the following literals:
18.What is a page directive?The page directive is used to provide instructions to the container that pertain to the current JSP page. You may code page directives anywhere in your JSP page. 19.What are various attributes Of page directive?Page directive contains the following 13 attributes. 20.What is a buffer attribute?The buffer attribute specifies buffering characteristics for the server output response object. |