December 2003
Intermediate to advanced
764 pages
24h 58m
English
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Syntax
An EL
expression starts with the
${
delimiter (a dollar sign plus a left
curly brace) and ends with } (a right curly
brace):
${anExpression}When used in an attribute value, any number of EL expressions and
static text parts can be combined. The attribute is set to the
evaluation result of each expression converted to a
String concatenated with the text parts:
<c:out value="The result of 1 + 2 + 3 is ${1 + 2 + 3}" />If the type for the attribute is not String, the
result is converted to the attribute’s Java type as
described later.
The language is case-sensitive. All keywords are in lowercase, and identifiers must be written with correct capitalization.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.