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Class java.awt.Button

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

public class Button

extends Component

Button()

Constructs a Button with no label.

Button(String)

Constructs a Button with the specified label.

addActionListener(ActionListener)

Adds the specified action listener to receive action events from this button.

addNotify()

Creates the peer of the button.

getActionCommand()

Returns the command name of the action event fired by this button.

getLabel()

Gets the label of the button.

paramString()

Returns the parameter String of this button.

processActionEvent(ActionEvent)

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

processEvent(AWTEvent)

Processes events on this button.

removeActionListener(ActionListener)

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

setActionCommand(String)

Sets the command name of the action event fired by this button.

setLabel(String)

Sets the button with the specified label.

 public Button()

Constructs a Button with no label.

 public Button(String label)

Constructs a Button with the specified label.

Parameters:

label - the label of the button

 public void addNotify()

Creates the peer of the button. This peer allows us to change the look of the button without changing its functionality.

Overrides:

addNotify in class Component

 public String getLabel()

Gets the label of the button.

See Also:

setLabel

 public synchronized void setLabel(String label)

Sets the button with the specified label.

Parameters:

label - the label to set the button with

See Also:

getLabel

 public void setActionCommand(String command)

Sets the command name of the action event fired by this button. By default this will be set to the label of the button.

 public String getActionCommand()

Returns the command name of the action event fired by this button.

 public synchronized void addActionListener(ActionListener l)

Adds the specified action listener to receive action events from this button.

Parameters:

l - the action listener

 public synchronized void removeActionListener(ActionListener l)

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

Parameters:

l - the action listener

 protected void processEvent(AWTEvent e)

Processes events on this button. 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 Component

 protected void processActionEvent(ActionEvent e)

Processes action events occurring on this button 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

 protected String paramString()

Returns the parameter String of this button.

Overrides:

paramString in class Component

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