模块 java.desktop

包 java.awt

类 Panel

java.lang.Object

java.awt.Component

java.awt.Container

java.awt.Panel

所有已实现的接口：

ImageObserver , MenuContainer , Serializable , Accessible

已知子类：

Applet

public class Panel extends Container implements Accessible 
      

Panel 是最简单的容器类。面板提供空间，应用程序可以在其中附加任何其他组件，包括其他面板。

面板的默认布局管理器是 FlowLayout 布局管理器。

自从：

1.0

参见：

• FlowLayout
• Serialized Form

内部类总结

内部类

修饰符和类型	类	描述
protected class	Panel.AccessibleAWTPanel	此类实现了对 Panel 类的辅助功能支持。

在类 java.awt.Container 中声明的嵌套类/接口

Container.AccessibleAWTContainer

在类 java.awt.Component 中声明的嵌套类/接口

Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy

字段摘要

在类 java.awt.Component 中声明的字段

accessibleContext, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

在接口 java.awt.image.ImageObserver 中声明的字段

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

构造方法总结

构造方法

构造方法	描述
Panel()	使用默认布局管理器创建一个新面板。
Panel(LayoutManager layout)	使用指定的布局管理器创建一个新面板。

方法总结

修饰符和类型	方法	描述
void	addNotify()	创建面板的对等体。
AccessibleContext	getAccessibleContext()	获取与此面板关联的 AccessibleContext。

在类 java.awt.Container 中声明的方法

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, isValidateRoot, 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, transferFocusDownCycle, update, validate, validateTree

在类 java.awt.Component 中声明的方法

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, getBaseline, getBaselineResizeBehavior, 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, 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, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, requestFocusInWindow, reshape, resize, resize, revalidate, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeysEnabled, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setMaximumSize, setMinimumSize, setMixingCutoutShape, setName, setPreferredSize, setSize, setSize, setVisible, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle

在类 java.lang.Object 中声明的方法

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

构造方法详细信息

Panel

public Panel()
            

使用默认布局管理器创建一个新面板。所有面板的默认布局管理器都是 FlowLayout 类。

Panel

public Panel(LayoutManager  layout)
            

使用指定的布局管理器创建一个新面板。

参数：

layout - 此面板的布局管理器。

自从：

1.1

方法详情

addNotify

public void addNotify()
            

创建面板的对等体。对等点允许您在不更改面板功能的情况下修改面板的外观。

重写：

addNotify 在类 Container 中

参见：

• Component.isDisplayable()
• Container.removeNotify()

getAccessibleContext

public AccessibleContext  getAccessibleContext()
            

获取与此面板关联的 AccessibleContext。对于面板，AccessibleContext 采用 AccessibleAWTPanel 的形式。如有必要，将创建一个新的 AccessibleAWTPanel 实例。

指定者：

getAccessibleContext 在接口 Accessible 中

重写：

getAccessibleContext 在类 Component 中

返回：

作为此面板的 AccessibleContext 的 AccessibleAWTPanel

自从：

1.3