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Chapter 18 The java.awt Package |
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Chapter 18 The java.awt Package |
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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();
}
Object->Component(ImageObserver, MenuContainer, Serializable)->Container
Panel, ScrollPane, Window
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()
Component.getParent(), ContainerEvent.getContainer(), Toolkit.getNativeContainer()
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| java.awt.Component (JDK 1.0) |  |
java.awt.Cursor (JDK 1.1) |
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