java.awt
Class TextComponent

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.TextComponent

All Implemented Interfaces:

java.awt.image.ImageObserver

Direct Known Subclasses:

TextArea, TextField

public class TextComponent

extends Component

A TextComponent is a component that allows the editing of some text.

Field Summary

Fields inherited from interface java.awt.image.ImageObserver

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

Method Summary

String	getSelectedText() Returns the selected text contained in this TextComponent.
int	getSelectionEnd() Returns the selected text's end position.
int	getSelectionStart() Returns the selected text's start position.
String	getText() Returns the text contained in this TextComponent.
boolean	isEditable() Returns the boolean indicating whether this TextComponent is editable or not.
protected String	paramString() Returns the String of parameters for this TextComponent.
void	removeNotify() Removes the TextComponent's peer.
void	select(int selStart, int selEnd) Selects the text found between the specified start and end locations.
void	selectAll() Selects all the text in the TextComponent.
void	setEditable(boolean t) Sets the specified boolean to indicate whether or not this TextComponent should be editable.
void	setText(String t) Sets the text of this TextComponent to the specified text.

Methods inherited from class java.awt.Component

action, addNotify, bounds, checkImage, checkImage, createImage, createImage, deliverEvent, disable, enable, enable, getBackground, getColorModel, getFont, getFontMetrics, getForeground, getGraphics, getParent, getPeer, getToolkit, gotFocus, handleEvent, hide, imageUpdate, inside, invalidate, isEnabled, isShowing, isValid, isVisible, keyDown, keyUp, layout, list, list, list, locate, location, lostFocus, minimumSize, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paint, paintAll, postEvent, preferredSize, prepareImage, prepareImage, print, printAll, repaint, repaint, repaint, repaint, requestFocus, reshape, resize, resize, setBackground, setFont, setForeground, show, show, size, toString, update, validate

Methods inherited from class java.lang.Object

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

Method Detail

removeNotify

public void removeNotify()

Removes the TextComponent's peer. The peer allows us to modify the appearance of the TextComponent without changing its functionality.

Overrides:

removeNotify in class Component

See Also:

Component.getPeer(), Component.addNotify()

setText

public void setText(String t)

Sets the text of this TextComponent to the specified text.

Parameters:

t - the new text to be set

See Also:

getText()

getText

public String getText()

Returns the text contained in this TextComponent.

See Also:

setText(java.lang.String)

getSelectedText

public String getSelectedText()

Returns the selected text contained in this TextComponent.

See Also:

setText(java.lang.String)

isEditable

public boolean isEditable()

Returns the boolean indicating whether this TextComponent is editable or not.

See Also:

setEditable(boolean)

setEditable

public void setEditable(boolean t)

Sets the specified boolean to indicate whether or not this TextComponent should be editable.

Parameters:

t - the boolean to be set

See Also:

isEditable()

getSelectionStart

public int getSelectionStart()

Returns the selected text's start position.

getSelectionEnd

public int getSelectionEnd()

Returns the selected text's end position.

select

public void select(int selStart,
                   int selEnd)

Selects the text found between the specified start and end locations.

Parameters:

selStart - the start position of the text

selEnd - the end position of the text

selectAll

public void selectAll()

Selects all the text in the TextComponent.

paramString

protected String paramString()

Returns the String of parameters for this TextComponent.

Overrides:

paramString in class Component