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Class java.awt.TextField

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

public class TextField

extends TextComponent

TextField()

Constructs a new TextField.

TextField(int)

Constructs a new empty TextField with the specified number of columns.

TextField(String)

Constructs a new TextField initialized with the specified text.

TextField(String, int)

Constructs a new TextField initialized with the specified text and columns.

addActionListener(ActionListener)

Adds the specified action listener to recieve action events from this textfield.

addNotify()

Creates the TextField's peer.

echoCharIsSet()

Returns true if this TextField has a character set for echoing.

getColumns()

Returns the number of columns in this TextField.

getEchoChar()

Returns the character to be used for echoing.

getMinimumSize()

Returns the minimum size Dimensions needed for this TextField.

getMinimumSize(int)

Returns the minimum size Dimensions needed for this TextField with the specified amount of columns.

getPreferredSize()

Returns the preferred size Dimensions needed for this TextField.

getPreferredSize(int)

Returns the preferred size Dimensions needed for this TextField with the specified amount of columns.

minimumSize()

Deprecated.

minimumSize(int)

Deprecated.

paramString()

Returns the String of parameters for this TextField.

preferredSize()

Deprecated.

preferredSize(int)

Deprecated.

processActionEvent(ActionEvent)

Processes action events occurring on this textfield by dispatching them to any registered ActionListener objects.

processEvent(AWTEvent)

Processes events on this textfield.

removeActionListener(ActionListener)

Removes the specified action listener so that it no longer receives action events from this textfield.

setColumns(int)

Sets the number of columns in this TextField.

setEchoChar(char)

Sets the echo character for this TextField.

setEchoCharacter(char)

Deprecated.

    method TextField() public 

Constructs a new TextField.

    method TextField(text=String) public 

Constructs a new TextField initialized with the specified text.

Parameters:

text - the text to be displayed

    method TextField(columns=int) public 

Constructs a new empty TextField with the specified number of columns.

Parameters:

columns - the number of columns

    method TextField(text=String, -
                     columns=int) public 

Constructs a new TextField initialized with the specified text and columns.

Parameters:

text - the text to be displayed

columns - the number of columns

    method addNotify()  public     

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

Overrides:

addNotify in class Component

    method getEchoChar() returns char public     

Returns the character to be used for echoing.

See Also:

setEchoChar, echoCharIsSet

    method setEchoChar(c=char)  public     

Sets the echo character for this TextField. This is useful for fields where the user input shouldn't be echoed to the screen, as in the case of a TextField that represents a password.

Parameters:

c - the echo character for this TextField

See Also:

echoCharIsSet, getEchoChar

    method setEchoCharacter(c=char)  public     

Note: setEchoCharacter() is deprecated. As of JDK version 1.1, replaced by setEchoChar(char).

    method echoCharIsSet() returns boolean public     

Returns true if this TextField has a character set for echoing.

See Also:

setEchoChar, getEchoChar

    method getColumns() returns int public     

Returns the number of columns in this TextField.

    method setColumns(columns=int)  public     

Sets the number of columns in this TextField.

Parameters:

columns - the number of columns

Throws: IllegalArgumentException

If columns is less than 0.

    method getPreferredSize(columns=int) returns Dimension public     

Returns the preferred size Dimensions needed for this TextField with the specified amount of columns.

Parameters:

columns - the number of columns in this TextField

    method preferredSize(columns=int) returns Dimension public     

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

    method getPreferredSize() returns Dimension public     

Returns the preferred size Dimensions needed for this TextField.

Overrides:

getPreferredSize in class Component

    method preferredSize() returns Dimension public     

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

Overrides:

preferredSize in class Component

    method getMinimumSize(columns=int) returns Dimension public     

Returns the minimum size Dimensions needed for this TextField with the specified amount of columns.

Parameters:

columns - the number of columns in this TextField

    method minimumSize(columns=int) returns Dimension public     

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

    method getMinimumSize() returns Dimension public     

Returns the minimum size Dimensions needed for this TextField.

Overrides:

getMinimumSize in class Component

    method minimumSize() returns Dimension public     

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

Overrides:

minimumSize in class Component

    method addActionListener(l=ActionListener)  public     

Adds the specified action listener to recieve action events from this textfield.

Parameters:

l - the action listener

    method removeActionListener(l=ActionListener)  public     

Removes the specified action listener so that it no longer receives action events from this textfield.

Parameters:

l - the action listener

    method processEvent(e=AWTEvent)  Inheritable     

Processes events on this textfield. If the event is an ActionEvent, it invokes the processActionEvent method, else it invokes its superclass's processEvent.

Parameters:

e - the event

Overrides:

processEvent in class TextComponent

    method processActionEvent(e=ActionEvent)  Inheritable     

Processes action events occurring on this textfield by dispatching them to any registered ActionListener objects. NOTE: This method will not be called unless action events are enabled for this component; this happens when one of the following occurs: a) An ActionListener object is registered via addActionListener() b) Action events are enabled via enableEvents()

Parameters:

e - the action event

See Also:

enableEvents

    method paramString() returns String Inheritable     

Returns the String of parameters for this TextField.

Overrides:

paramString in class TextComponent

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