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    <p>A package is much like a .Net namespace. The general convention in Java is to use your reversed domain name as a package prefix so if your company is example.com your packages will probably be:</p> <pre><code>com.example.projectname.etc... </code></pre> <p>It can be broken down to many levels rather than just one (projectname) but usually one is sufficient.</p> <p>Inside your project structure classes are usually divided into logical areas: controllers, models, views, etc. It depends on the type of project.</p> <p>There are two dominant build systems in Java: Ant and Maven.</p> <p>Ant is basically a domain-specific scripting language and quite flexible but you end up writing a lot of boilerplate stuff yourself (build, deploy, test, etc tasks). It's quick and convenient though.</p> <p>Maven is more modern and more complete and is worth using (imho). Maven is different to Ant in that Maven declares that this project is a "Web application project" (called an <em>archetype</em>). Once that is declared the directory structure is mandated once you specify your groupId (com.example) and artifactId (project name).</p> <p>You get a lot of stuff for free this way. The real bonus of Maven is that it manages your project dependencies for you so with a pom.xml (Maven project file) and correctly configured Maven you can give that to someone else (with your source code) and they can build, deploy, test and run your project with libraries being downloaded automatically.</p> <p>Ant gets something like this with Ivy.</p>
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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