| java.lang.Object
 java.awt.Component
java.awt.Label
| Label | | public class Label extends Component (Code) | | A Label object is a component for placing text in a
container. A label displays a single line of read-only text.
The text can be changed by the application, but a user cannot edit it
directly.
For example, the code . . .
setLayout(new FlowLayout(FlowLayout.CENTER, 10, 10));
add(new Label("Hi There!"));
add(new Label("Another Label"));
produces the following label:
version:
1.31, 07/01/98
author:
Sami Shaio
since:
JDK1.0 |
| Field Summary | |
| final public static int | CENTER
Indicates that the label should be centered. | | final public static int | LEFT
Indicates that the label should be left justified. | | final public static int | RIGHT
Indicates that the label should be right justified. | | int | alignment
The label's alignment. | | String | text
The text of this label. |
| Constructor Summary | |
| public | Label()
Constructs an empty label. | | public | Label(String text)
Constructs a new label with the specified string of text,
left justified. | | public | Label(String text, int alignment)
Constructs a new label that presents the specified string of
text with the specified alignment. |
| Method Summary | |
| public void | addNotify()
Creates the peer for this label. | | String | constructComponentName()
Construct a name for this component. | | public int | getAlignment()
Gets the current alignment of this label. | | public String | getText()
Gets the text of this label. | | protected String | paramString()
Returns the parameter string representing the state of this
label. | | public synchronized void | setAlignment(int alignment)
Sets the alignment for this label to the specified alignment. | | public synchronized void | setText(String text)
Sets the text for this label to the specified text. |
| CENTER | | final public static int CENTER(Code) | | Indicates that the label should be centered.
since:
JDK1.0 |
| LEFT | | final public static int LEFT(Code) | | Indicates that the label should be left justified.
since:
JDK1.0 |
| RIGHT | | final public static int RIGHT(Code) | | Indicates that the label should be right justified.
since:
JDK1.0t. |
| alignment | | int alignment(Code) | | The label's alignment. The default alignment is set
to be left justified.
|
| Label | | public Label()(Code) | | Constructs an empty label.
since:
JDK1.0 |
| Label | | public Label(String text)(Code) | | Constructs a new label with the specified string of text,
left justified.
Parameters:
text - the string that the label presents.
since:
JDK1.0 |
| Label | | public Label(String text, int alignment)(Code) | | Constructs a new label that presents the specified string of
text with the specified alignment.
Possible values for alignment are Label.LEFT,
Label.RIGHT, and Label.CENTER.
Parameters:
text - the string that the label presents.
Parameters:
alignment - the alignment value.
since:
JDK1.0 |
| addNotify | | public void addNotify()(Code) | | Creates the peer for this label. The peer allows us to
modify the appearance of the label without changing its
functionality.
|
| constructComponentName | | String constructComponentName()(Code) | | Construct a name for this component. Called by getName() when the
name is null.
|
| getAlignment | | public int getAlignment()(Code) | | Gets the current alignment of this label. Possible values are
Label.LEFT, Label.RIGHT, and
Label.CENTER.
See Also: java.awt.Label.setAlignment
since:
JDK1.0 |
| paramString | | protected String paramString()(Code) | | Returns the parameter string representing the state of this
label. This string is useful for debugging.
the parameter string of this label.
since:
JDK1.0 |
| setAlignment | | public synchronized void setAlignment(int alignment)(Code) | | Sets the alignment for this label to the specified alignment.
Possible values are Label.LEFT,
Label.RIGHT, and Label.CENTER.
Parameters:
alignment - the alignment to be set.
exception:
IllegalArgumentException - if an improper value foralignment is given.
See Also: java.awt.Label.getAlignment
since:
JDK1.0 |
| setText | | public synchronized void setText(String text)(Code) | | Sets the text for this label to the specified text.
Parameters:
text - the text that this label presents.
See Also: java.awt.Label.getText
since:
JDK1.0 |
| Methods inherited from java.awt.Component | public boolean action(Event evt, Object what)(Code)(Java Doc)
public synchronized void add(PopupMenu popup)(Code)(Java Doc)
public synchronized void addComponentListener(ComponentListener l)(Code)(Java Doc)
public synchronized void addFocusListener(FocusListener l)(Code)(Java Doc)
public synchronized void addKeyListener(KeyListener l)(Code)(Java Doc)
public synchronized void addMouseListener(MouseListener l)(Code)(Java Doc)
public synchronized void addMouseMotionListener(MouseMotionListener l)(Code)(Java Doc)
public void addNotify()(Code)(Java Doc)
boolean areInputMethodsEnabled()(Code)(Java Doc)
public Rectangle bounds()(Code)(Java Doc)
final void checkEnableNewEventsOnly(Object listener)(Code)(Java Doc)
public int checkImage(Image image, ImageObserver observer)(Code)(Java Doc)
public int checkImage(Image image, int width, int height, ImageObserver observer)(Code)(Java Doc)
protected AWTEvent coalesceEvents(AWTEvent existingEvent, AWTEvent newEvent)(Code)(Java Doc)
String constructComponentName()(Code)(Java Doc)
public boolean contains(int x, int y)(Code)(Java Doc)
public boolean contains(Point p)(Code)(Java Doc)
public Image createImage(ImageProducer producer)(Code)(Java Doc)
public Image createImage(int width, int height)(Code)(Java Doc)
ComponentXWindow createXWindow()(Code)(Java Doc)
public void deliverEvent(Event e)(Code)(Java Doc)
public void disable()(Code)(Java Doc)
final protected void disableEvents(long eventsToDisable)(Code)(Java Doc)
final public void dispatchEvent(AWTEvent e)(Code)(Java Doc)
void dispatchEventImpl(AWTEvent e)(Code)(Java Doc)
public void doLayout()(Code)(Java Doc)
public void enable()(Code)(Java Doc)
public void enable(boolean b)(Code)(Java Doc)
final protected synchronized void enableEvents(long eventsToEnable)(Code)(Java Doc)
boolean eventEnabled(AWTEvent e)(Code)(Java Doc)
Component findFocusDelegate(Container container)(Code)(Java Doc)
public float getAlignmentX()(Code)(Java Doc)
public float getAlignmentY()(Code)(Java Doc)
public Color getBackground()(Code)(Java Doc)
public Rectangle getBounds()(Code)(Java Doc)
public ColorModel getColorModel()(Code)(Java Doc)
public Component getComponentAt(int x, int y)(Code)(Java Doc)
public Component getComponentAt(Point p)(Code)(Java Doc)
public Cursor getCursor()(Code)(Java Doc)
Component getFocusDelegate()(Code)(Java Doc)
public Font getFont()(Code)(Java Doc)
Component getFontAndColorDelegate()(Code)(Java Doc)
public FontMetrics getFontMetrics(Font font)(Code)(Java Doc)
public Color getForeground()(Code)(Java Doc)
public Graphics getGraphics()(Code)(Java Doc)
InputContext getInputContext()(Code)(Java Doc)
public Locale getLocale()(Code)(Java Doc)
public Point getLocation()(Code)(Java Doc)
public Point getLocationOnScreen()(Code)(Java Doc)
public Dimension getMaximumSize()(Code)(Java Doc)
public Dimension getMinimumSize()(Code)(Java Doc)
public String getName()(Code)(Java Doc)
Container getNativeContainer()(Code)(Java Doc)
public Container getParent()(Code)(Java Doc)
public Dimension getPreferredSize()(Code)(Java Doc)
public Dimension getSize()(Code)(Java Doc)
public Toolkit getToolkit()(Code)(Java Doc)
final public Object getTreeLock()(Code)(Java Doc)
public boolean gotFocus(Event evt, Object what)(Code)(Java Doc)
public boolean handleEvent(Event evt)(Code)(Java Doc)
public void hide()(Code)(Java Doc)
public boolean imageUpdate(Image img, int flags, int x, int y, int w, int h)(Code)(Java Doc)
public boolean inside(int x, int y)(Code)(Java Doc)
public void invalidate()(Code)(Java Doc)
static void invokeAndWait(Runnable runnable)(Code)(Java Doc)
public boolean isDisplayable()(Code)(Java Doc)
public boolean isEnabled()(Code)(Java Doc)
public boolean isFocusTraversable()(Code)(Java Doc)
public boolean isLightweight()(Code)(Java Doc)
boolean isLightweightWhenDisplayable()(Code)(Java Doc)
public boolean isOpaque()(Code)(Java Doc)
public boolean isShowing()(Code)(Java Doc)
public boolean isValid()(Code)(Java Doc)
public boolean isVisible()(Code)(Java Doc)
public boolean keyDown(Event evt, int key)(Code)(Java Doc)
public boolean keyUp(Event evt, int key)(Code)(Java Doc)
public void layout()(Code)(Java Doc)
void lightweightPrint(Graphics g)(Code)(Java Doc)
public void list()(Code)(Java Doc)
public void list(PrintStream out)(Code)(Java Doc)
public void list(PrintStream out, int indent)(Code)(Java Doc)
public void list(PrintWriter out)(Code)(Java Doc)
public void list(PrintWriter out, int indent)(Code)(Java Doc)
public Component locate(int x, int y)(Code)(Java Doc)
public Point location()(Code)(Java Doc)
public boolean lostFocus(Event evt, Object what)(Code)(Java Doc)
public Dimension minimumSize()(Code)(Java Doc)
public boolean mouseDown(Event evt, int x, int y)(Code)(Java Doc)
public boolean mouseDrag(Event evt, int x, int y)(Code)(Java Doc)
public boolean mouseEnter(Event evt, int x, int y)(Code)(Java Doc)
public boolean mouseExit(Event evt, int x, int y)(Code)(Java Doc)
public boolean mouseMove(Event evt, int x, int y)(Code)(Java Doc)
public boolean mouseUp(Event evt, int x, int y)(Code)(Java Doc)
public void move(int x, int y)(Code)(Java Doc)
public void nextFocus()(Code)(Java Doc)
public void paint(Graphics g)(Code)(Java Doc)
public void paintAll(Graphics g)(Code)(Java Doc)
protected String paramString()(Code)(Java Doc)
public boolean postEvent(Event e)(Code)(Java Doc)
public Dimension preferredSize()(Code)(Java Doc)
public boolean prepareImage(Image image, ImageObserver observer)(Code)(Java Doc)
public boolean prepareImage(Image image, int width, int height, ImageObserver observer)(Code)(Java Doc)
public void print(Graphics g)(Code)(Java Doc)
public void printAll(Graphics g)(Code)(Java Doc)
protected void processComponentEvent(ComponentEvent e)(Code)(Java Doc)
protected void processEvent(AWTEvent e)(Code)(Java Doc)
protected void processFocusEvent(FocusEvent e)(Code)(Java Doc)
protected void processKeyEvent(KeyEvent e)(Code)(Java Doc)
protected void processMouseEvent(MouseEvent e)(Code)(Java Doc)
protected void processMouseMotionEvent(MouseEvent e)(Code)(Java Doc)
public synchronized void remove(MenuComponent popup)(Code)(Java Doc)
public synchronized void removeComponentListener(ComponentListener l)(Code)(Java Doc)
public synchronized void removeFocusListener(FocusListener l)(Code)(Java Doc)
public synchronized void removeKeyListener(KeyListener l)(Code)(Java Doc)
public synchronized void removeMouseListener(MouseListener l)(Code)(Java Doc)
public synchronized void removeMouseMotionListener(MouseMotionListener l)(Code)(Java Doc)
public void removeNotify()(Code)(Java Doc)
public void repaint()(Code)(Java Doc)
public void repaint(long tm)(Code)(Java Doc)
public void repaint(int x, int y, int width, int height)(Code)(Java Doc)
public void repaint(long tm, int x, int y, int width, int height)(Code)(Java Doc)
public void requestFocus()(Code)(Java Doc)
public void reshape(int x, int y, int width, int height)(Code)(Java Doc)
public void resize(int width, int height)(Code)(Java Doc)
public void resize(Dimension d)(Code)(Java Doc)
public void setBackground(Color c)(Code)(Java Doc)
public void setBounds(int x, int y, int width, int height)(Code)(Java Doc)
public void setBounds(Rectangle r)(Code)(Java Doc)
public synchronized void setCursor(Cursor cursor)(Code)(Java Doc)
public void setEnabled(boolean b)(Code)(Java Doc)
public void setFont(Font f)(Code)(Java Doc)
public void setForeground(Color c)(Code)(Java Doc)
public void setLocale(Locale l)(Code)(Java Doc)
public void setLocation(int x, int y)(Code)(Java Doc)
public void setLocation(Point p)(Code)(Java Doc)
public void setName(String name)(Code)(Java Doc)
public void setSize(int width, int height)(Code)(Java Doc)
public void setSize(Dimension d)(Code)(Java Doc)
public void setVisible(boolean b)(Code)(Java Doc)
public void show()(Code)(Java Doc)
public void show(boolean b)(Code)(Java Doc)
public Dimension size()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
public void transferFocus()(Code)(Java Doc)
public void update(Graphics g)(Code)(Java Doc)
public void validate()(Code)(Java Doc)
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