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The remainder of this document will cover each of these mechanisms in greater detail.
It is generally considered good practice to center the architecture of an application around its data rather than around its user interface.
Swing's separable model design treats the model part of a component as a separate element, just as the MVC design does.
But Swing collapses the view and controller parts of each component into a single UI (user-interface) object.
I write this code , but it don't work and has DBexeption. // below code is in my private void j Text Field1Key Typed(event.
Key Event evt) // Variables declaration - do not modify private javax.swing.
GUI-state models typically are relevant only in the context of a graphical user interface (GUI).
While it is often useful to develop programs using GUI-state model separation -- particularly if multiple GUI controls are linked to a common state (such as in a shared whiteboard program), or if manipulating one control automatically changes the value of another -- the use of GUI-state models is not required by Swing.
That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
One noteworthy point is that as an application developer, you should think of a component's view/controller responsibilities as being handled by the generic component class (such as. The component class then delegates the look-and-feel-specific aspects of those responsibilities to the UI object that is provided by the currently installed look-and-feel.
For example, the code that implements double-buffered painting is in Swing's .
For truly data-centric Swing components, such as JTree and JTable, interaction with the data model is strongly recommended.
Application-data models are highlighted in red in the table presented at the beginning of this section.
The preceding diagram illustrates this subtle (and often confusing) point: So Swing does have a strong MVC lineage.