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Class java.awt.TextArea

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

public class TextArea
extends TextComponent

A TextArea object is a multi-line area that displays text. It can be set to allow editing or read-only modes.

SCROLLBARS_BOTH: Create and display both vertical and horizontal scrollbars.
SCROLLBARS_HORIZONTAL_ONLY: Create and display horizontal scrollbar only.
SCROLLBARS_NONE: Do not create or display any scrollbars for the text area.
SCROLLBARS_VERTICAL_ONLY: Create and display vertical scrollbar only.

TextArea(): Constructs a new TextArea.
TextArea(int, int): Constructs a new empty TextArea with the specified number of rows and columns.
TextArea(String): Constructs a new TextArea with the specified text displayed.
TextArea(String, int, int): Constructs a new TextArea with the specified text and number of rows and columns.
TextArea(String, int, int, int): Constructs a new TextArea with the specified text and number of rows, columns, and scrollbar visibility.

addNotify(): Creates the TextArea's peer.
append(String): Appends the given text to the end.
appendText(String): Deprecated.
getColumns(): Returns the number of columns in the TextArea.
getMinimumSize(): Returns the minimum size Dimensions of the TextArea.
getMinimumSize(int, int): Returns the specified minimum size Dimensions of the TextArea.
getPreferredSize(): Returns the preferred size Dimensions of the TextArea.
getPreferredSize(int, int): Returns the specified row and column Dimensions of the TextArea.
getRows(): Returns the number of rows in the TextArea.
getScrollbarVisibility(): Returns the enumerated value describing which scrollbars the text area has.
insert(String, int): Inserts the specified text at the specified position.
insertText(String, int): Deprecated.
minimumSize(): Deprecated.
minimumSize(int, int): Deprecated.
paramString(): Returns the String of parameters for this TextArea.
preferredSize(): Deprecated.
preferredSize(int, int): Deprecated.
replaceRange(String, int, int): Replaces text from the indicated start to end position with the new text specified.
replaceText(String, int, int): Deprecated.
setColumns(int): Sets the number of columns for this TextArea.
setRows(int): Sets the number of rows for this TextArea.

SCROLLBARS_BOTH

 public static final int SCROLLBARS_BOTH

Create and display both vertical and horizontal scrollbars.

SCROLLBARS_VERTICAL_ONLY

 public static final int SCROLLBARS_VERTICAL_ONLY

Create and display vertical scrollbar only.

SCROLLBARS_HORIZONTAL_ONLY

 public static final int SCROLLBARS_HORIZONTAL_ONLY

Create and display horizontal scrollbar only.

SCROLLBARS_NONE

 public static final int SCROLLBARS_NONE

Do not create or display any scrollbars for the text area.

TextArea

 public TextArea()

Constructs a new TextArea.

TextArea

 public TextArea(String text)

Constructs a new TextArea with the specified text displayed.

Parameters:: text - the text to be displayed

TextArea

 public TextArea(int rows,
                 int columns)

Constructs a new empty TextArea with the specified number of rows and columns.

Parameters:: rows - the number of rows; columns - the number of columns

TextArea

 public TextArea(String text,
                 int rows,
                 int columns)

Constructs a new TextArea with the specified text and number of rows and columns.

Parameters:: text - the text to be displayed; rows - the number of rows; columns - the number of columns

TextArea

 public TextArea(String text,
                 int rows,
                 int columns,
                 int scrollbars)

Constructs a new TextArea with the specified text and number of rows, columns, and scrollbar visibility.

Parameters:: text - the text to be displayed; rows - the number of rows; columns - the number of columns; scrollbars - the visibility of scrollbars

addNotify

 public void addNotify()

Creates the TextArea's peer. The peer allows us to modify the appearance of the TextArea without changing any of its functionality.

Overrides:: addNotify in class Component

insert

 public synchronized void insert(String str,
                                 int pos)

Inserts the specified text at the specified position.

Parameters:: str - the text to insert.; pos - the position at which to insert.
See Also:: setText, replaceRange

insertText

 public void insertText(String str,
                        int pos)

Note: insertText() is deprecated. As of JDK version 1.1, replaced by insert(String, int).

append

 public synchronized void append(String str)

Appends the given text to the end.

Parameters:: str - the text to insert
See Also:: insert

appendText

 public void appendText(String str)

Note: appendText() is deprecated. As of JDK version 1.1, replaced by append(String).

replaceRange

 public synchronized void replaceRange(String str,
                                       int start,
                                       int end)

Replaces text from the indicated start to end position with the new text specified.

Parameters:: str - the text to use as the replacement.; start - the start position.; end - the end position.
See Also:: insert, replaceRange

replaceText

 public void replaceText(String str,
                         int start,
                         int end)

Note: replaceText() is deprecated. As of JDK version 1.1, replaced by replaceRange(String, int, int).

getRows

 public int getRows()

Returns the number of rows in the TextArea.

setRows

 public void setRows(int rows)

Sets the number of rows for this TextArea.

Parameters:: rows - the number of rows
Throws: IllegalArgumentException: If rows is less than 0.

getColumns

 public int getColumns()

Returns the number of columns in the TextArea.

setColumns

 public void setColumns(int columns)

Sets the number of columns for this TextArea.

Parameters:: columns - the number of columns
Throws: IllegalArgumentException: If columns is less than 0.

getScrollbarVisibility

 public int getScrollbarVisibility()

Returns the enumerated value describing which scrollbars the text area has.

Returns:: the display policy for the scrollbars

getPreferredSize

 public Dimension getPreferredSize(int rows,
                                   int columns)

Returns the specified row and column Dimensions of the TextArea.

Parameters:: rows - the preferred rows amount; columns - the preferred columns amount

preferredSize

 public Dimension preferredSize(int rows,
                                int columns)

Note: preferredSize() is deprecated. As of JDK version 1.1, replaced by getPreferredSize(int, int).

getPreferredSize

 public Dimension getPreferredSize()

Returns the preferred size Dimensions of the TextArea.

Overrides:: getPreferredSize in class Component

preferredSize

 public Dimension preferredSize()

Note: preferredSize() is deprecated. As of JDK version 1.1, replaced by getPreferredSize().

Overrides:: preferredSize in class Component

getMinimumSize

 public Dimension getMinimumSize(int rows,
                                 int columns)

Returns the specified minimum size Dimensions of the TextArea.

Parameters:: rows - the minimum row size; columns - the minimum column size

minimumSize

 public Dimension minimumSize(int rows,
                              int columns)

Note: minimumSize() is deprecated. As of JDK version 1.1, replaced by getMinimumSize(int, int).

getMinimumSize

 public Dimension getMinimumSize()

Returns the minimum size Dimensions of the TextArea.

Overrides:: getMinimumSize in class Component

minimumSize

 public Dimension minimumSize()

Note: minimumSize() is deprecated. As of JDK version 1.1, replaced by getMinimumSize().

Overrides:: minimumSize in class Component

paramString

 protected String paramString()

Returns the String of parameters for this TextArea.

Overrides:: paramString in class TextComponent

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