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Class java.awt.Container

java.lang.Object
   |
   +----java.awt.Component
           |
           +----java.awt.Container

public class Container

extends Component

Version:

1.30, 08/17/95

Author:

Arthur van Hoff, Sami Shaio

add(Component)

Adds the specified component to this container.

add(String, Component)

Adds the specified component to this container.

addNotify()

Notifies the container to create a peer.

countComponents()

Returns the number of components in this panel.

deliverEvent(Event)

Delivers an event.

getComponent(int)

Gets the nth component in this container.

getComponents()

Gets all the components in this container.

getLayout()

Gets the layout manager for this container.

insets()

Returns the insets of the container.

layout()

Does a layout on this Container.

list(PrintStream, int)

Prints out a list, starting at the specified indention, to the specified out stream.

locate(int, int)

Locates the component that contains the x,y position.

minimumSize()

Returns the minimum size of this container.

paintComponents(Graphics)

Paints the components in this container.

paramString()

Returns the parameter String of this Container.

preferredSize()

Returns the preferred size of this container.

printComponents(Graphics)

Prints the components in this container.

remove(Component)

Removes the specified component from this container.

removeAll()

Removes all the components from this container.

removeNotify()

Notifies the container to remove its peer.

setLayout(LayoutManager)

Sets the layout manager for this container.

validate()

Validates this Container and all of the components contained within it.

  public int countComponents()

Returns the number of components in this panel.

See Also:

getComponent

getComponent

  public synchronized Component getComponent(int n)

Gets the nth component in this container.

Parameters:

n - the number of the component to get

Throws: ArrayIndexOutOfBoundsException

If the nth value does not exist.

getComponents

  public synchronized Component[] getComponents()

Gets all the components in this container.

insets

  public Insets insets()

Returns the insets of the container. The insets indicate the size of the border of the container. A Frame, for example, will have a top inset that corresponds with the height of the Frame's title bar.

See Also:

LayoutManager

add

  public synchronized Component add(Component comp)

Adds the specified component to this container.

Parameters:

comp - the component to be added

See Also:

remove

add

  public synchronized Component add(String name,
                                    Component comp)

Adds the specified component to this container. The component is also added to the layout manager of this container using the name.

Parameters:

name - the component name

comp - the component to be added

See Also:

remove, LayoutManager

remove

  public synchronized void remove(Component comp)

Removes the specified component from this container.

Parameters:

comp - the component to be removed

See Also:

add

removeAll

  public synchronized void removeAll()

Removes all the components from this container.

See Also:

add, remove

getLayout

  public LayoutManager getLayout()

Gets the layout manager for this container.

See Also:

layout, setLayout

setLayout

  public void setLayout(LayoutManager mgr)

Sets the layout manager for this container.

Parameters:

mgr - the specified layout manager

See Also:

layout, getLayout

layout

  public synchronized void layout()

Does a layout on this Container.

Overrides:

layout in class Component

See Also:

setLayout

validate

  public synchronized void validate()

Validates this Container and all of the components contained within it.

Overrides:

validate in class Component

See Also:

validate, invalidate

preferredSize

  public synchronized Dimension preferredSize()

Returns the preferred size of this container.

Overrides:

preferredSize in class Component

See Also:

minimumSize

minimumSize

  public synchronized Dimension minimumSize()

Returns the minimum size of this container.

Overrides:

minimumSize in class Component

See Also:

preferredSize

paintComponents

  public void paintComponents(Graphics g)

Paints the components in this container.

Parameters:

g - the specified Graphics window

See Also:

paint, paintAll

printComponents

  public void printComponents(Graphics g)

Prints the components in this container.

Parameters:

g - the specified Graphics window

See Also:

print, printAll

deliverEvent

  public void deliverEvent(Event e)

Delivers an event. The appropriate component is located and the event is delivered to it.

Parameters:

e - the event

Overrides:

deliverEvent in class Component

See Also:

handleEvent, postEvent

locate

  public Component locate(int x,
                          int y)

Locates the component that contains the x,y position.

Parameters:

x - the x coordinate

y - the y coordinate

Returns:

null if the component is not within the x and y coordinates; returns the component otherwise.

Overrides:

locate in class Component

See Also:

inside

addNotify

  public synchronized void addNotify()

Notifies the container to create a peer. It will also notify the components contained in this container.

Overrides:

addNotify in class Component

See Also:

removeNotify

removeNotify

  public synchronized void removeNotify()

Notifies the container to remove its peer. It will also notify the components contained in this container.

Overrides:

removeNotify in class Component

See Also:

addNotify

paramString

  protected String paramString()

Returns the parameter String of this Container.

Overrides:

paramString in class Component

list

  public void list(PrintStream out,
                   int indent)

Prints out a list, starting at the specified indention, to the specified out stream.

Parameters:

out - the Stream name

indent - the start of the list

Overrides:

list in class Component

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