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Uses of Class java.awt.Component
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Uses of Class
java.awt.Component

  • Packages that use Component 
    Package Description
    java.awt
    Contains all of the classes for creating user interfaces and for painting graphics and images.
    java.awt.event
    Provides interfaces and classes for dealing with different types of events fired by AWT components.

    • Uses of Component in java.awt

      Subclasses of Component in java.awt 
      Modifier and Type Class and Description
      class  Button
      This class creates a labeled button.
      class  Canvas
      A Canvas component represents a blank rectangular area of the screen onto which the application can draw or from which the application can trap input events from the user.
      class  Checkbox
      A check box is a graphical component that can be in either an "on" (true) or "off" (false) state.
      class  Choice
      The Choice class presents a pop-up menu of choices.
      class  Container
      A generic Abstract Window Toolkit(AWT) container object is a component that can contain other AWT components.
      class  Dialog
      A Dialog is a top-level window with a title and a border that is typically used to take some form of input from the user.
      class  FileDialog
      The FileDialog class displays a dialog window from which the user can select a file.
      class  Frame
      A Frame is a top-level window with a title and a border.
      class  Label
      A Label object is a component for placing text in a container.
      class  List
      The List component presents the user with a scrolling list of text items.
      class  Panel
      Panel is the simplest container class.
      class  Scrollbar
      The Scrollbar class embodies a scroll bar, a familiar user-interface object.
      class  ScrollPane
      A container class which implements automatic horizontal and/or vertical scrolling for a single child component.
      class  TextArea
      A TextArea object is a multi-line region that displays text.
      class  TextComponent
      The TextComponent class is the superclass of any component that allows the editing of some text.
      class  TextField
      A TextField object is a text component that allows for the editing of a single line of text.
      class  Window
      A Window object is a top-level window with no borders and no menubar.
      Fields in java.awt with type parameters of type Component 
      Modifier and Type Field and Description
      protected java.util.Hashtable<Component,GridBagConstraints>  GridBagLayout.comptable
      This hashtable maintains the association between a component and its gridbag constraints.
      Methods in java.awt that return Component 
      Modifier and Type Method and Description
      Component  Container.add(Component comp)
      Appends the specified component to the end of this container.
      Component  Container.add(Component comp, int index)
      Adds the specified component to this container at the given position.
      Component  Container.add(java.lang.String name, Component comp)
      Adds the specified component to this container.
      Component  Container.findComponentAt(int x, int y)
      Locates the visible child component that contains the specified position.
      Component  Container.findComponentAt(Point p)
      Locates the visible child component that contains the specified point.
      Component  Container.getComponent(int n)
      Gets the nth component in this container.
      abstract Component  FocusTraversalPolicy.getComponentAfter(Container aContainer, Component aComponent)
      Returns the Component that should receive the focus after aComponent.
      Component  ContainerOrderFocusTraversalPolicy.getComponentAfter(Container aContainer, Component aComponent)
      Returns the Component that should receive the focus after aComponent.
      Component  Container.getComponentAt(int x, int y)
      Locates the component that contains the x,y position.
      Component  Component.getComponentAt(int x, int y)
      Determines if this component or one of its immediate subcomponents contains the (x, y) location, and if so, returns the containing component.
      Component  Container.getComponentAt(Point p)
      Gets the component that contains the specified point.
      Component  Component.getComponentAt(Point p)
      Returns the component or subcomponent that contains the specified point.
      abstract Component  FocusTraversalPolicy.getComponentBefore(Container aContainer, Component aComponent)
      Returns the Component that should receive the focus before aComponent.
      Component  ContainerOrderFocusTraversalPolicy.getComponentBefore(Container aContainer, Component aComponent)
      Returns the Component that should receive the focus before aComponent.
      Component[]  Container.getComponents()
      Gets all the components in this container.
      abstract Component  FocusTraversalPolicy.getDefaultComponent(Container aContainer)
      Returns the default Component to focus.
      Component  ContainerOrderFocusTraversalPolicy.getDefaultComponent(Container aContainer)
      Returns the default Component to focus.
      abstract Component  FocusTraversalPolicy.getFirstComponent(Container aContainer)
      Returns the first Component in the traversal cycle.
      Component  ContainerOrderFocusTraversalPolicy.getFirstComponent(Container aContainer)
      Returns the first Component in the traversal cycle.
      Component  Window.getFocusOwner()
      Returns the child Component of this Window that has focus if this Window is focused; returns null otherwise.
      Component  KeyboardFocusManager.getFocusOwner()
      Returns the focus owner, if the focus owner is in the same context as the calling thread.
      protected Component  KeyboardFocusManager.getGlobalFocusOwner()
      Returns the focus owner, even if the calling thread is in a different context than the focus owner.
      protected Component  KeyboardFocusManager.getGlobalPermanentFocusOwner()
      Returns the permanent focus owner, even if the calling thread is in a different context than the permanent focus owner.
      Component  FocusTraversalPolicy.getInitialComponent(Window window)
      Returns the Component that should receive the focus when a Window is made visible for the first time.
      abstract Component  FocusTraversalPolicy.getLastComponent(Container aContainer)
      Returns the last Component in the traversal cycle.
      Component  ContainerOrderFocusTraversalPolicy.getLastComponent(Container aContainer)
      Returns the last Component in the traversal cycle.
      Component  BorderLayout.getLayoutComponent(Container target, java.lang.Object constraints)
      Returns the component that corresponds to the given constraint location based on the target Container's component orientation.
      Component  BorderLayout.getLayoutComponent(java.lang.Object constraints)
      Gets the component that was added using the given constraint
      Component  Window.getMostRecentFocusOwner()
      Returns the child Component of this Window that will receive the focus when this Window is focused.
      Component  KeyboardFocusManager.getPermanentFocusOwner()
      Returns the permanent focus owner, if the permanent focus owner is in the same context as the calling thread.
      Component  Container.locate(int x, int y)
      Deprecated. As of JDK version 1.1, replaced by getComponentAt(int, int).
      Component  Component.locate(int x, int y)
      Deprecated. As of JDK version 1.1, replaced by getComponentAt(int, int).
      Methods in java.awt with parameters of type Component 
      Modifier and Type Method and Description
      protected boolean  DefaultFocusTraversalPolicy.accept(Component aComponent)
      Determines whether a Component is an acceptable choice as the new focus owner.
      protected boolean  ContainerOrderFocusTraversalPolicy.accept(Component aComponent)
      Determines whether a Component is an acceptable choice as the new focus owner.
      Component  Container.add(Component comp)
      Appends the specified component to the end of this container.
      Component  Container.add(Component comp, int index)
      Adds the specified component to this container at the given position.
      void  Container.add(Component comp, java.lang.Object constraints)
      Adds the specified component to the end of this container.
      void  Container.add(Component comp, java.lang.Object constraints, int index)
      Adds the specified component to this container with the specified constraints at the specified index.
      Component  Container.add(java.lang.String name, Component comp)
      Adds the specified component to this container.
      protected void  ScrollPane.addImpl(Component comp, java.lang.Object constraints, int index)
      Adds the specified component to this scroll pane container.
      protected void  Container.addImpl(Component comp, java.lang.Object constraints, int index)
      Adds the specified component to this container at the specified index.
      void  LayoutManager2.addLayoutComponent(Component comp, java.lang.Object constraints)
      Adds the specified component to the layout, using the specified constraint object.
      void  GridBagLayout.addLayoutComponent(Component comp, java.lang.Object constraints)
      Adds the specified component to the layout, using the specified constraints object.
      void  CardLayout.addLayoutComponent(Component comp, java.lang.Object constraints)
      Adds the specified component to this card layout's internal table of names.
      void  BorderLayout.addLayoutComponent(Component comp, java.lang.Object constraints)
      Adds the specified component to the layout, using the specified constraint object.
      void  LayoutManager.addLayoutComponent(java.lang.String name, Component comp)
      If the layout manager uses a per-component string, adds the component comp to the layout, associating it with the string specified by name.
      void  GridLayout.addLayoutComponent(java.lang.String name, Component comp)
      Adds the specified component with the specified name to the layout.
      void  GridBagLayout.addLayoutComponent(java.lang.String name, Component comp)
      Has no effect, since this layout manager does not use a per-component string.
      void  FlowLayout.addLayoutComponent(java.lang.String name, Component comp)
      Adds the specified component to the layout.
      void  CardLayout.addLayoutComponent(java.lang.String name, Component comp)
      Deprecated replaced by addLayoutComponent(Component, Object).
      void  BorderLayout.addLayoutComponent(java.lang.String name, Component comp)
      Deprecated replaced by addLayoutComponent(Component, Object).
      protected java.awt.peer.LightweightPeer  Toolkit.createComponent(Component target)
      Creates a peer for a component or container.
      <T extends java.awt.dnd.DragGestureRecognizer> T  Toolkit.createDragGestureRecognizer(java.lang.Class<T> abstractRecognizerClass, java.awt.dnd.DragSource ds, Component c, int srcActions, java.awt.dnd.DragGestureListener dgl)
      Creates a concrete, platform dependent, subclass of the abstract DragGestureRecognizer class requested, and associates it with the DragSource, Component and DragGestureListener specified.
      protected abstract void  KeyboardFocusManager.dequeueKeyEvents(long after, Component untilFocused)
      Called by the AWT to notify the KeyboardFocusManager that it should cancel delayed dispatching of KeyEvents.
      protected void  DefaultKeyboardFocusManager.dequeueKeyEvents(long after, Component untilFocused)
      Releases for normal dispatching to the current focus owner all KeyEvents which were enqueued because of a call to enqueueKeyEvents with the same timestamp and Component.
      protected abstract void  KeyboardFocusManager.discardKeyEvents(Component comp)
      Called by the AWT to notify the KeyboardFocusManager that it should cancel delayed dispatching of KeyEvents.
      protected void  DefaultKeyboardFocusManager.discardKeyEvents(Component comp)
      Discards all KeyEvents which were enqueued because of one or more calls to enqueueKeyEvents with the specified Component, or one of its descendants.
      protected abstract void  KeyboardFocusManager.enqueueKeyEvents(long after, Component untilFocused)
      Called by the AWT to notify the KeyboardFocusManager that it should delay dispatching of KeyEvents until the specified Component becomes the focus owner.
      protected void  DefaultKeyboardFocusManager.enqueueKeyEvents(long after, Component untilFocused)
      Delays dispatching of KeyEvents until the specified Component becomes the focus owner.
      abstract void  KeyboardFocusManager.focusNextComponent(Component aComponent)
      Focuses the Component after aComponent, typically based on a FocusTraversalPolicy.
      void  DefaultKeyboardFocusManager.focusNextComponent(Component aComponent)
      Focuses the Component after aComponent, typically based on a FocusTraversalPolicy.
      abstract void  KeyboardFocusManager.focusPreviousComponent(Component aComponent)
      Focuses the Component before aComponent, typically based on a FocusTraversalPolicy.
      void  DefaultKeyboardFocusManager.focusPreviousComponent(Component aComponent)
      Focuses the Component before aComponent, typically based on a FocusTraversalPolicy.
      abstract Component  FocusTraversalPolicy.getComponentAfter(Container aContainer, Component aComponent)
      Returns the Component that should receive the focus after aComponent.
      Component  ContainerOrderFocusTraversalPolicy.getComponentAfter(Container aContainer, Component aComponent)
      Returns the Component that should receive the focus after aComponent.
      abstract Component  FocusTraversalPolicy.getComponentBefore(Container aContainer, Component aComponent)
      Returns the Component that should receive the focus before aComponent.
      Component  ContainerOrderFocusTraversalPolicy.getComponentBefore(Container aContainer, Component aComponent)
      Returns the Component that should receive the focus before aComponent.
      int  Container.getComponentZOrder(Component comp)
      Returns the z-order index of the component inside the container.
      GridBagConstraints  GridBagLayout.getConstraints(Component comp)
      Gets the constraints for the specified component.
      java.lang.Object  BorderLayout.getConstraints(Component comp)
      Gets the constraints for the specified component
      protected static Container  Toolkit.getNativeContainer(Component c)
      Give native peers the ability to query the native container given a native component (eg the direct parent may be lightweight).
      boolean  Container.isAncestorOf(Component c)
      Checks if the component is contained in the component hierarchy of this container.
      protected GridBagConstraints  GridBagLayout.lookupConstraints(Component comp)
      Retrieves the constraints for the specified component.
      abstract void  KeyboardFocusManager.processKeyEvent(Component focusedComponent, KeyEvent e)
      This method initiates a focus traversal operation if and only if the KeyEvent represents a focus traversal key for the specified focusedComponent.
      void  DefaultKeyboardFocusManager.processKeyEvent(Component focusedComponent, KeyEvent e)
      This method initiates a focus traversal operation if and only if the KeyEvent represents a focus traversal key for the specified focusedComponent.
      void  KeyboardFocusManager.redispatchEvent(Component target, AWTEvent e)
      Redispatches an AWTEvent in such a way that the AWT event dispatcher will not recursively request that the KeyboardFocusManager, or any installed KeyEventDispatchers, dispatch the event again.
      void  Container.remove(Component comp)
      Removes the specified component from this container.
      void  LayoutManager.removeLayoutComponent(Component comp)
      Removes the specified component from the layout.
      void  GridLayout.removeLayoutComponent(Component comp)
      Removes the specified component from the layout.
      void  GridBagLayout.removeLayoutComponent(Component comp)
      Removes the specified component from this layout.
      void  FlowLayout.removeLayoutComponent(Component comp)
      Removes the specified component from the layout.
      void  CardLayout.removeLayoutComponent(Component comp)
      Removes the specified component from the layout.
      void  BorderLayout.removeLayoutComponent(Component comp)
      Removes the specified component from this border layout.
      void  Container.setComponentZOrder(Component comp, int index)
      Moves the specified component to the specified z-order index in the container.
      void  GridBagLayout.setConstraints(Component comp, GridBagConstraints constraints)
      Sets the constraints for the specified component in this layout.
      protected void  KeyboardFocusManager.setGlobalFocusOwner(Component focusOwner)
      Sets the focus owner.
      protected void  KeyboardFocusManager.setGlobalPermanentFocusOwner(Component permanentFocusOwner)
      Sets the permanent focus owner.
      void  Window.setLocationRelativeTo(Component c)
      Sets the location of the window relative to the specified component according to the following scenarios.
      void  PopupMenu.show(Component origin, int x, int y)
      Shows the popup menu at the x, y position relative to an origin component.
      abstract void  KeyboardFocusManager.upFocusCycle(Component aComponent)
      Moves the focus up one focus traversal cycle.
      void  DefaultKeyboardFocusManager.upFocusCycle(Component aComponent)
      Moves the focus up one focus traversal cycle.
      Constructors in java.awt with parameters of type Component 
      Constructor and Description
      MediaTracker(Component comp)
      Creates a media tracker to track images for a given component.

    • Uses of Component in java.awt.event

      Methods in java.awt.event that return Component 
      Modifier and Type Method and Description
      Component  HierarchyEvent.getChanged()
      Returns the Component at the top of the hierarchy which was changed.
      Component  ContainerEvent.getChild()
      Returns the component that was affected by the event.
      Component  HierarchyEvent.getComponent()
      Returns the originator of the event.
      Component  ComponentEvent.getComponent()
      Returns the originator of the event.
      Component  FocusEvent.getOppositeComponent()
      Returns the other Component involved in this focus change.
      Constructors in java.awt.event with parameters of type Component 
      Constructor and Description
      ComponentEvent(Component source, int id)
      Constructs a ComponentEvent object.
      ContainerEvent(Component source, int id, Component child)
      Constructs a ContainerEvent object.
      FocusEvent(Component source, int id)
      Constructs a FocusEvent object and identifies it as a permanent change in focus.
      FocusEvent(Component source, int id, boolean temporary)
      Constructs a FocusEvent object and identifies whether or not the change is temporary.
      FocusEvent(Component source, int id, boolean temporary, Component opposite)
      Constructs a FocusEvent object with the specified temporary state and opposite Component.
      HierarchyEvent(Component source, int id, Component changed, Container changedParent)
      Constructs an HierarchyEvent object to identify a change in the Component hierarchy.
      HierarchyEvent(Component source, int id, Component changed, Container changedParent, long changeFlags)
      Constructs an HierarchyEvent object to identify a change in the Component hierarchy.
      InputMethodEvent(Component source, int id, java.text.AttributedCharacterIterator text, int committedCharacterCount, java.awt.font.TextHitInfo caret, java.awt.font.TextHitInfo visiblePosition)
      Constructs an InputMethodEvent with the specified source component, type, text, caret, and visiblePosition.
      InputMethodEvent(Component source, int id, long when, java.text.AttributedCharacterIterator text, int committedCharacterCount, java.awt.font.TextHitInfo caret, java.awt.font.TextHitInfo visiblePosition)
      Constructs an InputMethodEvent with the specified source component, type, time, text, caret, and visiblePosition.
      InputMethodEvent(Component source, int id, java.awt.font.TextHitInfo caret, java.awt.font.TextHitInfo visiblePosition)
      Constructs an InputMethodEvent with the specified source component, type, caret, and visiblePosition.
      KeyEvent(Component source, int id, long when, int modifiers, int keyCode)
      Deprecated as of JDK1.1
      KeyEvent(Component source, int id, long when, int modifiers, int keyCode, char keyChar)
      Constructs a KeyEvent object.
      KeyEvent(Component source, int id, long when, int modifiers, int keyCode, char keyChar, int keyLocation)
      Constructs a KeyEvent object.
      MouseEvent(Component source, int id, long when, int modifiers, int x, int y, int clickCount, boolean popupTrigger)
      Constructs a MouseEvent object with the specified source component, type, modifiers, coordinates, click count, and popupTrigger flag.
      MouseEvent(Component source, int id, long when, int modifiers, int x, int y, int clickCount, boolean popupTrigger, int button)
      Constructs a MouseEvent object with the specified source component, type, time, modifiers, coordinates, click count, popupTrigger flag, and button number.
      MouseEvent(Component source, int id, long when, int modifiers, int x, int y, int xAbs, int yAbs, int clickCount, boolean popupTrigger, int button)
      Constructs a MouseEvent object with the specified source component, type, time, modifiers, coordinates, absolute coordinates, click count, popupTrigger flag, and button number.
      MouseWheelEvent(Component source, int id, long when, int modifiers, int x, int y, int clickCount, boolean popupTrigger, int scrollType, int scrollAmount, int wheelRotation)
      Constructs a MouseWheelEvent object with the specified source component, type, modifiers, coordinates, scroll type, scroll amount, and wheel rotation.
      MouseWheelEvent(Component source, int id, long when, int modifiers, int x, int y, int xAbs, int yAbs, int clickCount, boolean popupTrigger, int scrollType, int scrollAmount, int wheelRotation)
      Constructs a MouseWheelEvent object with the specified source component, type, modifiers, coordinates, absolute coordinates, scroll type, scroll amount, and wheel rotation.
      MouseWheelEvent(Component source, int id, long when, int modifiers, int x, int y, int xAbs, int yAbs, int clickCount, boolean popupTrigger, int scrollType, int scrollAmount, int wheelRotation, double preciseWheelRotation)
      Constructs a MouseWheelEvent object with the specified source component, type, modifiers, coordinates, absolute coordinates, scroll type, scroll amount, and wheel rotation.
      PaintEvent(Component source, int id, Rectangle updateRect)
      Constructs a PaintEvent object with the specified source component and type.
This document was created by Dulcet from the OpenJDK sources. Copyright © 1993, 2012 Oracle and/or its affiliates. All rights reserved.

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