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Robinson M., Vorobiev P.: Java Swing With Samples (Manning)
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Part I consists of two chapters that lay the foundation for a successful and productive journey through the JFC Swing class library. The first begins with a brief overview of what Swing is and an introduction to its architecture. The second builds up into a detailed discussion of the key mechanisms underlying Swing, and how to interact with them. There are several sections on topics that are fairly advanced, such as multithreading and painting. This material is central to many
areas of Swing and by introducing it in chapter 2, your understanding of what is to come will be significantly enhanced. We expect that you will want to refer back to this chapter quite often, and in several places we explicitly refer you to it in the text. At the very least, it is recommended that you know what chapter 2 contains before moving on.
Swing is a large set of components ranging from the very simple, such as labels, to the very complex, such as tables, trees, and styled text documents. Almost all Swing components are derived from a single parent called JComponent which extends the AWT Container class. Thus, Swing is best described as a layer on top of AWT rather than a replacement for it. Figure 1.2 shows a partial JComponent hierarchy. If you compare this with the AWT Component heirarchy of figure 1.1 you will notice that for each AWT component there is a Swing equivalent with prefix J. The only exception to this is the AWT Canvas class, for which JComponent, JLabel, or JPanel can be used as a replacement (in section 2.8 we discuss this in detail). You will also notice many Swing classes with no AWT counterparts.
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