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Containers: intro

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• Import packages
  • When writing Java Graphical Applications, you need to import these packages

    java.awt.* : the abstract window toolkit - the first generation Java API javax.swing.* : the "swing" extension toolkit - provides additional functionality on top of AWT

  • Classes that start with J... are swing classes

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• Containers: used to organize GUI components
  • Containers:

    JFrame = a heavy weight container used as the top-level window JPanel = a light weight container used to organize GUI components

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  • How to use these containers:

    Various GUI components are stuck (added) on to one or more JPanels Then the JPanels are stuck (added) onto the JFrame