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Chapter 18 The java.awt Package |
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18.16 java.awt.Container (JDK 1.0)
This class implements a component that can contain other components. You cannot instantiate Container directly, but must use one of its subclasses, such as Panel, Frame, or Dialog. Once a Container is created, you may set its LayoutManager with setLayout(), add components to it with add(), and remove them with remove(). getComponents() returns an array of the components contained in a Container. locate() determines within which contained component a specified point falls. list() produces helpful debugging output.
public abstract class Container extends Component {
// Protected Constructor
1.1 protected Container();
// Public Instance Methods
public Component add(Component comp);
public Component add(String name, Component comp);
public Component add(Component comp, int index);
1.1 public void add(Component comp, Object constraints);
1.1 public void add(Component comp, Object constraints, int index);
1.1 public void addContainerListener(ContainerListener l);
public void addNotify(); // Overrides Component
# public int countComponents();
# public void deliverEvent(Event e); // Overrides Component
1.1 public void doLayout(); // Overrides Component
1.1 public float getAlignmentX(); // Overrides Component
1.1 public float getAlignmentY(); // Overrides Component
public Component getComponent(int n);
1.1 public Component getComponentAt(int x, int y); // Overrides Component
1.1 public Component getComponentAt(Point p); // Overrides Component
1.1 public int getComponentCount();
public Component[] getComponents();
1.1 public Insets getInsets();
public LayoutManager getLayout();
1.1 public Dimension getMaximumSize(); // Overrides Component
1.1 public Dimension getMinimumSize(); // Overrides Component
1.1 public Dimension getPreferredSize(); // Overrides Component
# public Insets insets();
1.1 public void invalidate(); // Overrides Component
1.1 public boolean isAncestorOf(Component c);
# public void layout(); // Overrides Component
public void list(PrintStream out, int indent); // Overrides Component
1.1 public void list(PrintWriter out, int indent); // Overrides Component
# public Component locate(int x, int y); // Overrides Component
# public Dimension minimumSize(); // Overrides Component
1.1 public void paint(Graphics g); // Overrides Component
public void paintComponents(Graphics g);
# public Dimension preferredSize(); // Overrides Component
1.1 public void print(Graphics g); // Overrides Component
public void printComponents(Graphics g);
1.1 public void remove(int index);
public void remove(Component comp);
public void removeAll();
1.1 public void removeContainerListener(ContainerListener l);
public void removeNotify(); // Overrides Component
public void setLayout(LayoutManager mgr);
public void validate(); // Overrides Component
// Protected Instance Methods
1.1 protected void addImpl(Component comp, Object constraints, int index);
protected String paramString(); // Overrides Component
1.1 protected void processContainerEvent(ContainerEvent e);
1.1 protected void processEvent(AWTEvent e); // Overrides Component
1.1 protected void validateTree();
}
Hierarchy:
Object->Component(ImageObserver, MenuContainer, Serializable)->Container
Extended By:
Panel, ScrollPane, Window
Passed To:
BorderLayout.getLayoutAlignmentX(), BorderLayout.getLayoutAlignmentY(), BorderLayout.invalidateLayout(), BorderLayout.layoutContainer(), BorderLayout.maximumLayoutSize(), BorderLayout.minimumLayoutSize(), BorderLayout.preferredLayoutSize(), CardLayout.first(), CardLayout.getLayoutAlignmentX(), CardLayout.getLayoutAlignmentY(), CardLayout.invalidateLayout(), CardLayout.last(), CardLayout.layoutContainer(), CardLayout.maximumLayoutSize(), CardLayout.minimumLayoutSize(), CardLayout.next(), CardLayout.preferredLayoutSize(), CardLayout.previous(), CardLayout.show(), FlowLayout.layoutContainer(), FlowLayout.minimumLayoutSize(), FlowLayout.preferredLayoutSize(), GridBagLayout.ArrangeGrid(), GridBagLayout.getLayoutAlignmentX(), GridBagLayout.getLayoutAlignmentY(), GridBagLayout.GetLayoutInfo(), GridBagLayout.GetMinSize(), GridBagLayout.invalidateLayout(), GridBagLayout.layoutContainer(), GridBagLayout.maximumLayoutSize(), GridBagLayout.minimumLayoutSize(), GridBagLayout.preferredLayoutSize(), GridLayout.layoutContainer(), GridLayout.minimumLayoutSize(), GridLayout.preferredLayoutSize(), LayoutManager.layoutContainer(), LayoutManager.minimumLayoutSize(), LayoutManager.preferredLayoutSize(), LayoutManager2.getLayoutAlignmentX(), LayoutManager2.getLayoutAlignmentY(), LayoutManager2.invalidateLayout(), LayoutManager2.maximumLayoutSize()
Returned By:
Component.getParent(), ContainerEvent.getContainer(), Toolkit.getNativeContainer()
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| java.awt.Component (JDK 1.0) |  |
java.awt.Cursor (JDK 1.1) |
