Class AlertListener

java.lang.Object
  |
  +--AlertListener

public class AlertListener

extends java.lang.Object

implements java.awt.event.ActionListener, java.awt.event.FocusListener

Implements a listener that works specifically for the alert dialog generated by AlertListener.alert() Just a handy way of making a standard application alert and receiving the info about which button was clicked.

Constructor Summary

(package private)

AlertListener(java.awt.Dialog _d) Standard constructor, takes the dialog box to listen to.

Method Summary

void	actionPerformed(java.awt.event.ActionEvent e) Executed when one of the buttons is clicked.
static boolean	alert(java.lang.String mesg, java.lang.String label1, java.lang.String label2, java.awt.Frame f) Creates a single message two button alert dialog box, and returns true if the first button is selected, false if the second is.
boolean	answer() Returns the result of the dialog box.
void	focusGained(java.awt.event.FocusEvent e)
void	focusLost(java.awt.event.FocusEvent e)

Methods inherited from class java.lang.Object

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

Constructor Detail

AlertListener

AlertListener(java.awt.Dialog _d)

Standard constructor, takes the dialog box to listen to. This box needs to have two buttons, with action commands button1 and button2.

Parameters:

_d - the alert to listen to

Method Detail

answer

public boolean answer()

Returns the result of the dialog box.

actionPerformed

public void actionPerformed(java.awt.event.ActionEvent e)

Executed when one of the buttons is clicked. Sets the return value accordingly.

Specified by:

actionPerformed in interface java.awt.event.ActionListener

Parameters:

e - the actionevent that occured

focusGained

public void focusGained(java.awt.event.FocusEvent e)

Specified by:

focusGained in interface java.awt.event.FocusListener

focusLost

public void focusLost(java.awt.event.FocusEvent e)

Specified by:

focusLost in interface java.awt.event.FocusListener

alert

public static boolean alert(java.lang.String mesg,
                            java.lang.String label1,
                            java.lang.String label2,
                            java.awt.Frame f)

Creates a single message two button alert dialog box, and returns true if the first button is selected, false if the second is. The dialog box halts the program and disappears after a selection is made.

Parameters:

mesg - the message to display

label1 - the label of the first button

label2 - the label of the second button

w - the window the dialog is for

Returns:

a boolean indicating which button was selected