Java Swing and AWT: JFC and Graphical User Interfaces

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Questions and Answers

Which Java framework is a graphical framework for building portable Java-based graphical user interfaces?

  • Swing
  • AWT
  • Java Foundation Classes (correct)
  • Java 2D

What is the set of application program interfaces (APIs) used by Java programmers to create graphical user interface (GUI) objects?

  • JFC
  • Java 2D
  • AWT (correct)
  • Swing

Which Java framework is used to create window-based applications?

  • AWT
  • Swing (correct)
  • Java 2D
  • JFC

What feature of Swing components allows applications to run with native look and feel on different platforms?

<p>Pluggable look and feel (PL&amp;F) (B)</p>
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What type of components do Swing components contain replacements for?

<p>Heavyweight AWT components (A)</p>
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What distinguishes lightweight components from heavyweight components in terms of pixels and shape?

<p>Lightweight components have opaque pixels and are always rectangular (D)</p>
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What is the main advantage of Swing components?

<p>They are platform independent (C)</p>
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Which feature allows Swing components to provide a good look and feel to the application?

<p>Pluggable look and feel support (A)</p>
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What is the role of the JComponent class in the Swing component hierarchy?

<p>It is the root of visual component class hierarchy in JFC (C)</p>
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What is the benefit of Swing's loosely coupled architecture?

<p>Changes in one component don't impact other components (D)</p>
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Why are Swing components considered manageable?

<p>They allow uniform changes to the UI at runtime (C)</p>
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What sets Swing apart from AWT in terms of component hierarchy?

<p>&quot;J&quot; classes represent visual components in Swing (D)</p>
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What distinguishes Swing from AWT in terms of component weight?

<p>Swing components are lightweight, while AWT components are heavyweight (A)</p>
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What feature allows Swing to provide support for user interface framework mappings?

<p>&quot;java.swing&quot; package (A)</p>
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How does Swing support customizability for its controls?

<p>&quot;Pluggable look and feel&quot; support enhances customizability (C)</p>
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"MVC" architecture is associated with which Java GUI framework?

<p>&quot;Swing&quot; (C)</p>
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Study Notes

Java Frameworks for GUI

  • Java Swing is a graphical framework for building portable Java-based graphical user interfaces.
  • The set of application program interfaces (APIs) used by Java programmers to create graphical user interface (GUI) objects is Java Abstract Window Toolkit (AWT).

Swing Framework

  • Swing is used to create window-based applications.
  • Swing components allow applications to run with native look and feel on different platforms due to their feature of Pluggable Look and Feel.
  • Swing components contain replacements for AWT components.

Component Characteristics

  • Lightweight components are distinct from heavyweight components in that they are responsible for rendering their own pixels and shape.
  • The main advantage of Swing components is their ability to provide a good look and feel to the application.
  • Swing components provide a good look and feel to the application due to their ability to customize their appearance.

Component Hierarchy

  • The JComponent class is the base class in the Swing component hierarchy.
  • Swing's loosely coupled architecture allows for easy modification and extension of components.
  • Swing components are considered manageable due to their ability to be easily modified and extended.

Comparison with AWT

  • Swing components are distinct from AWT components in that they are lightweight, whereas AWT components are heavyweight.
  • Swing's component hierarchy is more flexible and customizable than AWT's.

Additional Features

  • Swing provides support for user interface framework mappings through its feature of UIFramework.
  • Swing supports customizability for its controls through its ability to customize their appearance and behavior.
  • Swing is associated with the "MVC" (Model-View-Controller) architecture.

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