Sunday 29th of May 2016 09:04:05 PM

Nice and Free CSS Templates

Java Application Layer

All of the code that you write (in your Java classes) might be considered the Java application layer. Other layers are the XML Parser layer, the XML source (that supplies the XML data that is necessary), and the persistence engine (where the data is actually stored and retrieved by the source).

Your code (in the Java application layer) has to make use of the DOM or SAX API and the XML parser in order to access the information in XML documents (that come from your source). The source might be responsible for pulling data from different persistence engines (relational or object databases) and even the web (dynamically generated websites that supply only XML data).

In your application layer, you can create many interesting Java applications. The apps can run on the server side or client side or both. They may have graphical user interfaces or they may be web based. When I use the word application or app in this chapter, I don't exclude Java applets; I mean application (or app) in the broad sense of the word, i.e., I mean it to describe a software system written in Java that solves a real-world problem.

3 Main categories

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Menu und content
dynamic

Menu fixed, content
dynamic

Menu und content
dynamic

3 columns all
dynamic

4 columns all
dynamic

Menu floating

Menu fix, Inhalt u.
Head dynamic

3 columns fix
centered

dynamic mit
Head und Footer

fixed BOX centered

dynamic BOX
centered

fixed Box total
centered
H1 or a P element. Figure 7-36 illustrates one way to handle these threekeywords, as well as how they relate to each other and to the contentthey surround.

Figure 7-36

Figure 7-36. The relation of border-width keywords to each other

Let's suppose a paragraph has margins, a background color, anda border style set as shown in Figure 7-37:

P {margin: 5px; background-color: silver; border-style: solid;}
Figure 7-37

Figure 7-37. Margins, backgrounds, and borders

Figure 6-17

Figure 6-17. Navigator's incorrect behavior

Let me reiterate: this is totally wrong. However, there is a way around it, which is to set a border on the element. You can do this by setting the border the same color as the background color of your document:

BODY {background: silver;}
P {background-color: gray; padding: 1px; border: 0.1px solid gray;}

It is necessary to set a border-style for this technique to work. Whether you use that specific property, or simply