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Chapter 19 java.awt Reference |
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Label
Name
Label
![[Graphic: Figure from the text]](./figs/label.gif)
Description
The Label is a Component that displays a single line of static text.
Class Definition
public class java.awt.Label
extends java.awt.Component {
// Constants
public static final int CENTER;
public static final int LEFT;
public static final int RIGHT;
// Constructors
public Label();
public Label (String label);
public Label (String label, int alignment);
// Instance Methods
public void addNotify();
public int getAlignment();
public String getText();
public synchronized void setAlignment (int alignment);
public synchronized void setText (String label);
// Protected Instance Methods
protected String paramString();
}
Constants
CENTER
public static final int CENTER
- Description
-
Constant to center text within the label.
LEFT
public static final int LEFT
- Description
-
Constant to left justify text within the label.
RIGHT
public static final int RIGHT
- Description
-
Constant to right justify text within the label.
Constructors
Label
public Label()
- Description
-
Constructs a Label object with the text centered within the label.
public Label (String label)
- Parameters
-
- label
-
The text for the label
- label
- Description
-
Constructs a Label object with the text label centered within the label.
public Label (String label, int alignment)
- Parameters
-
- label
-
The text for the label
- alignment
-
The alignment for the label; one of the constants CENTER, LEFT, or RIGHT.
- label
- Throws
-
- IllegalArgumentException
-
If alignment is not one of CENTER, LEFT, or RIGHT.
- IllegalArgumentException
- Description
-
Constructs a Label object, with a given alignment and text of label.
Instance Methods
addNotify
public void addNotify()
- Overrides
-
Component.addNotify()
- Description
-
Creates Label's peer.
getAlignment
public int getAlignment()
- Returns
-
Current alignment.
getText
public String getText()
- Returns
-
Current text of Label.
setAlignment
public synchronized void setAlignment (int alignment)
- Parameters
-
- alignment
-
New alignment for Label; CENTER, LEFT, or RIGHT.
- alignment
- Throws
-
- IllegalArgumentException
-
If alignment is not one of CENTER, LEFT, or RIGHT.
- IllegalArgumentException
- Description
-
Changes the current alignment of Label.
setText
public synchronized void setText (String label)
- Parameters
-
- label
-
New text for Label.
- label
- Description
-
Changes the current text of Label.
Protected Instance Methods
paramString
protected String paramString()
- Returns
-
String with current settings of Label.
- Overrides
-
Component.paramString()
- Description
-
Helper method for toString() to generate string of current settings.
See Also
Component, String
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ItemSelectable  |
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LayoutManager |
