 |  | | From Scott Orgera, your About Programming Editor | | | In this week's newsletter we put your Java training to the test, discuss the importance of using enums, show you how to reverse engineer Delphi code, describe the differences between database facts and dimensions, and much more... | | | | | Sign up for more free newsletters: | | | | | In order to be able to put the knowledge you learn from our Java articles to the test, it's important to put into practice your newly-found Java skills. These programming exercises provide the opportunity to further your understanding of using Java syntax by working with Java code. Firing up your favorite Java IDE and coding is the only way to build the foundation of a good Java developer. READ NOW | | | The HTTP referer is passed by Web browsers to the server to tell you what page the reader was on before they came to this page. This information can be used on your website to provide extra help, create special offers to targeted users, redirect customers, or block visitors from coming to your site. You can use scripting languages like JavaScript, PHP or ASP to read and evaluate referrer information; or you can add lines to your .htaccess files. READ NOW
| | | | Short for enumeration, an enum variable type can be found in C (Ansi, not the original K&R), C++ and C#. The idea is that instead of using an int to represent a set of values, a type with a restricted set of values in utilized. Using enums increases the level of abstraction and lets the programmer think about what the values mean, rather than worry about how they are stored and accessed. This reduces the occurrence of bugs. READ NOW | | | | Simply speaking, decompilation is the inverse of compilation: translating an executable file into a higher level language. Suppose you lose your Delphi project's source and you only have the executable file: reverse engineering (decompilation) is useful if the original sources are not available. Hm, "sources not available", does this mean that we can decompile other people's Delphi projects? Well, yes and no. READ NOW | | | | | | An every-morning rundown of the day in history, with headlines and trends produced by your pals at About.com. Click here to sign up! It's free (of course) and we think you'll like it! | | | | | Want More From About.com? | | | | Sign up for more free newsletters on your favorite topics
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