<p>Q:</p><p>1-1.</p><p>The following variables are valid or invalid for these reasons:</p><p>Valid. <code>my_variable2</code> starts with a letter, is less than 31 characters in length, and contains only letters, digits, and $, #, or _.</p><p>Invalid. <code>my-variable2</code> may not contain a dash.</p><p>Invalid. <code>my^variable</code> contains an illegal character, ^.</p><p>Valid. <code>MyVariable</code> starts with a letter, is less than 31 characters in length, and contains only letters, digits, and $, #, or _.</p><p>Invalid. <code>my_variable_for_many_many_of_usages</code> contains more than 30 characters.</p><p>Invalid. <code>123myvariable</code> cannot start with a number.</p><p>Valid. <code>123myvariable</code> is surrounded by double quotes. If you surround an identifier with double quotes (very different from two consecutive single quotes), then all rules about identifiers are suspended <em>except</em> for the maximum length of 30 characters.</p><p>Q:</p><p>1-2.</p><p>Oddly enough, (a) compiles, while (b) fails with the following error message:</p><p>PL/SQL is a case-insensitive language (except for the contents of literal strings). Therefore, in both cases you are trying to declare two variables with the same name, which is not allowed. It turns out, however, that the compiler will not reject the duplicate declarations unless you actually try to use one of the variables!</p><a class="default-logo-link" href="/ebooks/362891-oracle-pl-sql-programming-a-developer-s-workbook">See more</a>
<p><strong>It seems that in all scientific fields
there are works and people</strong> that one cannot avoid mentioning.
The current living champion is probably Noam Chomsky. According to an April 1992 article in the MIT
<em>Tech Talk</em>, Chomsky was one of the most cited
individuals in works published in the previous 20 years. The full top 10
roster of the <em>Arts & Humanities Citation
Index</em> included Marx, Lenin, Shakespeare, Aristotle, the
Bible, Plato, Freud, Chomsky, Hegel, and Cicero. In the
<em>Science Citation Index</em>, he was cited 1,619 times
in the period from 1972 to 1992.</p><p>In software engineering, oak leaf clusters must probably go to
<em>Design Patterns: Elements of Reusable Object-Oriented
Software</em> (a.k.a. the Gang of Four book [Gamma et al.
1994]). A Google search on the exact book title returns about
173,000 results (in spring 2008). If we turn our attention to a more
academic context, a search in the ACM Digital Library returns 1,572
results. The design patterns community has been one of the most vibrant
communities in software engineering in the last 20 years. It is
difficult to think of a software engineer plying her trade today who
would not be familiar with this important body of work.</p><a class="default-logo-link" href="/ebooks/362925-beautiful-architecture-leading-thinkers-reveal-the-hidden-beauty-in-software-design">See more</a>
White-Tailed Deer Nutrition
Nutrition is one of the main environmental factors governing the degree to which white-tailed deer can express their genetic potential for productivity, including antler and body growth.
Energy is commonly limiting for white-tailed deer productivity on rangelands.
Deer habitat management should focus on providing conditions under which deer can maintain a positive physiological energy balance.
• Abundant, nutritious, easily digestible food reduces foraging time and energy expended during digestion.
• Food, water, and cover should be in close juxtaposition and well interspersed to minimize energy expended in travel.
• Sufficient areas of dense woody canopy should be available for thermal cover.
White-tailed deer select plant species to eat as a result of learning, inherited traits, and the ability to discriminate between foods based on their nutrient content.
<strong>Importance of Nutrition in White-Tailed Deer Management</strong>
</p><p>Nutrition is fundamental to deer management because it determines how many deer a given landscape can support and the productivity of the population. Deer populations are far less productive in nutritionally inadequate habitats than in habitats where nutritional needs are met. Poor nutrition results in reduced ovulation and conception rates in females (Teer, Thomas, and Walker 1965; Verme 1969). If adequate nutrients are not available, milk production by females is reduced, resulting in lower fawn survival (DePerno et al. 2000). Antler size of yearling males is affected strongly by environmental and maternal factors that influence nutrition, including mothering ability, milk production, and health (Lukefahr and Jacobsen 1998).</p><a class="default-logo-link" href="/ebooks/449580-white-tailed-deer-habitat-ecology-and-management-on-rangelands">See more</a>
<strong>Sometimes JSTL and standard actions arent enough.</strong>
</p><p>When you need something custom, and you dont want to go back to scripting, you can write your <em>own</em> tag handlers. That way, your page designers can use your <em>tag</em> in their pages, while all the <em>hard</em> work is done behind the scenes in your tag handler <em>class</em>. But there are three different ways to build your own tag handlers, so theres a lot to learn. Of the three, two were introduced with JSP 2.0 to make your life easier (Simple Tags and Tag Files). But you still have to learn about <em><strong>Classic</strong></em> tags for that ridiculously rare occasion when neither of the other two will do what you want. Custom tag development gives you virtually unlimited power, if you can learn to wield it...</p><p>
<strong>Building a Custom Tag Library</strong>
</p><p>Describe the semantics of the Classic custom tag event model when each event method (doStartTag(), doAfterBody(), and doEndTag()) is executed, and explain what the return value for each event method means; and write a tag handler class.</p><a class="default-logo-link" href="/ebooks/363265-head-first-servlets-and-jsp-passing-the-sun-certified-web-component-developer-exam">See more</a>
<p>CARL DAY</p><p>Crime Scene Search Unit</p><p>Dallas Police Department</p><p>"When I came out of the Book Depository, walking with the</p><p>FBI man who was taking me to the office, somebody asked me, lS that a Mauser? ' or words to that effect. I didn't answer them ...</p><p>I didn't know what I had other than it was a gun... "</p><p>Born and raised in Dallas, Carl Day graduated from high school in</p><p>1932. After working for a machinery company during the Depression, Day joined the Dallas Police Department in 1940. Interrupted by a three-year stint in the Navy during World War Two, he returned to his patrol assignment and was promoted to detective in the Homicide and Robbery</p><p>Bureau in 1947 under Captain Fritz. The following year Day transferred to the Identification Bureau. Upon promotion to lieutenant in 1954, he joined the newly formed Crime Lab within the Identification Bureau and remained in that position upon Kennedy's arrival in Dallas.</p><p>I was in the office of the Crime Lab on the fourth floor of</p><p>City Hall when the parade passed City Hall at Harwood and turned west on Main. I was busy and didn't see it. A few minutes later I received a call that the President had been shot, and I went with</p><a class="default-logo-link" href="/ebooks/615202-no-more-silence">See more</a>