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Editorial Team
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Asked: 2026-05-26T04:59:40+00:00

Scenario : In NetBeans, you create Swing components via drag & drop and customize

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Scenario : In NetBeans, you create Swing components via drag & drop and customize some properties via the given GUI.

Question : Later on, If you see the generated code of these components, either in source or by by right-clicking the component and selecting customize code, we can see that the property changes are implemented via AWT. Why is this so?

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  1. Editorial Team

    As mentioned in Using Top-Level Containers,

    Each program that uses Swing components has at least one top-level
    container. This top-level container is the root of a containment
    hierarchy — the hierarchy that contains all of the Swing components
    that appear inside the top-level container.

    java.awt.Container, an AWT Componenet, is that container.

    Addendum: This overview suggests how pervasively the interface java.beans.PropertyChangeListener is used throughout AWT and Swing.

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