JAVA SWING

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JAVA SWING

• By
• Tahira Braschi
• April 20, 2001
• Dr. Marchant
• CS 108-002

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What is JFC?

• JFC stands for Java Foundation Classes, and it
  includes a group of features to help people build
  GUIs (Graphical User Interfaces).
• Features which help defined JFC are
• The Swing components
• Pluggable Look and Feel Support
• Accessibility API (Application Programmer
  Interface)
• Java 2D API
• Drag and Drop Support

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Swing

• Swing is the codename of the project that
  developed the new components. It is not the
  official name.
• However, its frequently used to refer to the new
  components and related API.

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Swing Components

• Part of the Java Foundation Classes (JFC), and
  can be used with either JDK 1.1 or the Java 2
  platform.
• Include everything buttons, lists, menus,
  tables, text areas, and containers such as
  windows and tool bars.

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Top-Level Containers
Appletyou should know that by now!
Dialogwindows that are more limited than frames.

• Frameis a window that has decorations such as a
  border, a title, and buttons for closing and
  iconifying the window. Applications with a GUI
  typically use at least one frame.

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General-Purpose Containers

• Intermediate containers which can be used under
  many different circumstances
• Panel
• Scroll pane
• Split pane
• Tabbed pane
• Tool bar

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General Purpose Containers

• Panelmost flexible and frequently used. Add
  almost no functionality beyond what all objects
  have. Often used to group components.
• Scroll paneprovides scroll bars around a large
  or growable component.
• Split panedisplays two components in a fixed
  amount of space, letting the user adjust the
  amount of space devoted to each component.

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General Purpose Containers

• Tabbed panecontains multiple components but show
  only one at a time. The user can easily switch
  between components.
• Tool barholds a group of components (usually
  buttons) in a row or column, optionally allowing
  the user to drag the tool bar into different
  locations.

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General-Purpose Containers
Panel
Split pane
Scroll Pane
Tool bar
Tabbed pane
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Special-Purpose Containers

• Intermediate containers that play specific roles
  in the use interface.
• Internal frame Able to display display a
  Frame-like window within another window. Usually,
  you add internal frames to a desktop pane.
• Layered frameProvides a third dimension for
  positioning components depth, also known as Z
  order.
• Root paneHas 4 parts glass pane, layered pane,
  content pane, and the (optional) menu bar.

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Special-Purpose Containers
Internal Frame
Layered Pane
Root Pane
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Basic Controls

• Atomic components that exist primarily to get
  input from the user they generally also show
  simple state.
• Buttonscan be square or round
• Combo Boxcan be uneditable and editable.
• ListPresents the user with a group of items,
  displayed in a column, to choose from.
• Menuprovides a space-saving way to let the user
  choose one of several options.
• Sliderlets user enter a numeric value bounded by
  a minimum and maximum value.
• Text Fieldsbasic text control that lets the user
  enter a small amount of text.

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Basic Controls
List
Buttons
Combo Box
Slider
Text Fields
Menu
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Uneditable Information Displays

• Atomic components that exist solely to give the
  user information.
• Labelable to display unselectable text and
  images.
• Progress Bardisplays the progress of a
  long-running task (also, ProgressMonitor and
  ProgressMonitorInputStream)
• Tool tipcomes up when the user of the program
  pauses with the cursor over any of the program's
  buttons

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Uneditable Information Displays
Progress Bar
Label
Tool Tips
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Editable Displays of Formatted Information

• Atomic components that display highly formatted
  information that can be edited by the user.
• Color chooserprovide users with a palette of
  colors to choose from.
• File chooserprovide a GUI for navigating the
  file system, and then either choosing a file or
  directory from a list or entering a file name or
  directory name.
• Tabledisplays tables of data, optionally
  allowing the user to edit the data.
• Textdisplays text and allows user to edit it
• Treedisplays data in hierarchical way

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Editable Displays of Formatted Information
File Chooser
Color Chooser
Tree
Table
Text
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Pluggable Look Feel Support

• Gives any program that uses Swing components a
  choice of looks and feels. For example, the same
  program can use either the Java look-and-feel or
  the Windows look-and-feel.
• Many more look-and-feel packages will be
  available in the future from various sources,
  including some that use sound instead of a visual
  look.

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Pluggable Look Feel Support
Java Look-and-feel
CDE/Motif Look-and-feel
Windows Look-and-feel
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Accessibility API

• Enables assistive technologies such as screen
  readers and Braille displays (for blind people)
  to get information from the user interface.
• Primarily, assistive technologies exist to enable
  people with permanent or temporary disabilities
  to use the computer.
• For example, if you get carpal tunnel syndrome,
  you can use assistive technologies to accomplish
  your work without using your hands.

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Java 2D API
Java 2 Platform only

• Enables developers to easily incorporate
  high-quality 2D graphics, text, and images in
  applications and in applets.
• Enables you to display complex charts and graphs
  that use various line and fill styles to
  distinguish sets of data.
• Enables you to store and to manipulate image
  databy performing image-filter operations, such
  as blur and sharpen.

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Drag and Drop Support

• Java 2 Platform only
• Provides the ability to drag and drop between a
  Java application and a native application.

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For more information on

• Go to java.sun.com. This is a very useful site
  and it is where I got my information for this
  presentation
• Theres a tutorial which takes you step by step
  on how to use Swing components.

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Questions

• What is JFC?
• What is Swing?
• Name the Swing components?
• Name 3 general purpose containers of Swing?
• What does the Pluggable look and feel support
  does?

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Thank you!!!
Thank you for your time! No, no questions,
please!!!!
or else youll be running after class!
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END