Question

java.lang.Object
  └java.awt.Component
      └java.awt.Container
          └java.awt.Panel

所有已实现的接口：

ImageObserver, MenuContainer, Serializable, javax.accessibility.Accessible

---

public class Panel

extends Container

implements javax.accessibility.Accessible

Panel 是最简单的容器类。应用程序可以将其他组件放在面板提供的空间内，这些组件包括其他面板。

面板的默认布局管理器是 FlowLayout 布局管理器。

从以下版本开始：

JDK1.0

另请参见：

FlowLayout , 序列化表格

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嵌套类摘要
protected class	Panel.AccessibleAWTPanel 此类实现 Panel 类的可访问性支持。

从类 java.awt.Container 继承的嵌套类/接口
Container.AccessibleAWTContainer

从类 java.awt.Component 继承的嵌套类/接口
Component.AccessibleAWTComponent, Component.BltBufferStrategy, Component.FlipBufferStrategy

字段摘要

从类 java.awt.Component 继承的字段
BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

从接口 java.awt.image.ImageObserver 继承的字段
ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

构造方法摘要
Panel() 使用默认的布局管理器创建新面板。
Panel(LayoutManagerlayout) 创建具有指定布局管理器的新面板。

方法摘要
void	addNotify() 创建 Panel 的同位体。
javax.accessibility.AccessibleContext	getAccessibleContext() 获取与 Panel 相关的 AccessibleContext。

从类 java.awt.Container 继承的方法

add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getInsets, getLayout, getListeners, getMaximumSize, getMinimumSize, getMousePosition, getPreferredSize, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paint, paintComponents, paramString, preferredSize, print, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, removeNotify, setComponentZOrder, setFocusCycleRoot, setFocusTraversalKeys, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setFont, setLayout, transferFocusBackward, transferFocusDownCycle, update, validate, validateTree

从类 java.awt.Component 继承的方法

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, printAll, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, reshape, resize, resize, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeysEnabled, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setMaximumSize, setMinimumSize, setName, setPreferredSize, setSize, setSize, setVisible, show, show, size, toString, transferFocus, transferFocusUpCycle

从类 java.lang.Object 继承的方法
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

构造方法详细信息

Panel

public Panel()

使用默认的布局管理器创建新面板。所有面板的默认布局管理器都是 FlowLayout 类。

---

Panel

public Panel(LayoutManagerlayout)

创建具有指定布局管理器的新面板。

参数：

layout - 此面板的布局管理器。

从以下版本开始：

JDK1.1

方法详细信息

addNotify

public void addNotify()

创建 Panel 的同位体。此同位体允许修改面板的外观而不会更改其功能。

覆盖：

类 Container 中的 addNotify

另请参见：

Component.isDisplayable() , Container.removeNotify()

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getAccessibleContext

public javax.accessibility.AccessibleContext getAccessibleContext()

获取与 Panel 相关的 AccessibleContext。对于面板，AccessibleContext 采用 AccessibleAWTPanel 的形式。如有必要，则创建一个新的 AccessibleAWTPanel 实例。

指定者：

接口 javax.accessibility.Accessible 中的 getAccessibleContext

覆盖：

类 Component 中的 getAccessibleContext

返回：

一个 AccessibleAWTPanel，它作为此 Panel 的 AccessibleContext