Get Sams Teach Yourself JavaServer Pages in 21 Days PDF
By Steven Holzner
Sams train your self JavaServer Pages in 21 Days bargains a confirmed instructional structure to educate JSP in 21 example-driven classes. This booklet is for internet publishing execs migrating to JavaServer Pages for its skill to create dynamic, interactive sites and separate presentation from Java code operating behind the curtain. The e-book begins by way of explaining the connection among JSP and Java Servlets and the fundamentals of JSP services and contours. you will then find out how JSP handles information, interacts with Java elements, tracks clients, and extra. Later chapters speak about debugging, operating with databases, XSLT and XML, utilizing the Struts framework from Apache, dealing with binary facts like pics, and deploying JSP purposes. every one subject is illustrated with many operating examples that the reader can comprehend and positioned to paintings instantly. in the course of the publication the writer presents tips that could upcoming advancements in JSP 2, to make sure that you're ready for adjustments within the re-creation.
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Additional info for Sams Teach Yourself JavaServer Pages in 21 Days
Actions Actions let you perform some operation, such as including other pages in the current page, or including Java applets, or working with JavaBean components (which you'll see in Day 6). Unlike directives, actions are re-evaluated each time the page is accessed. Let's take a look at these various types of JSP elements, starting with scripting elements. Scripting Elements There are three types of scripting elements in JSP: • Scriptlets Scriptlets can contain Java code. This is the most general of all the scripting elements.
Double-precision variables can hold values with greater precision than simple float variables, so if you try to assign the value in double1 to float1, Java realizes there might be a loss in precision, and will cause an error. println("float1 = " + float1); %>