javabook
Class MessageBox

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Container
              |
              +--java.awt.Window
                    |
                    +--java.awt.Dialog
                          |
                          +--javabook.JavaBookDialog
                                |
                                +--javabook.MessageBox

public class MessageBox

extends JavaBookDialog

implements java.awt.event.ActionListener, java.awt.event.KeyListener

This dialog is for displaying a single line of text. This dialog is intended for displaying a short warning or error message. The width of this dialog is adjusted to fit the displayed message and the dialog is placed at the center of the screen.

This class is provided as freeware. You are free to use as provided or modify to your heart's content. But you use it at your own risk. No implied or explicit warranty is given.

See Also:

Serialized Form

Fields inherited from class javabook.JavaBookDialog

font, wasMoved

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Constructor Summary

MessageBox()
Default constructor.

MessageBox(java.awt.Frame owner)
Creates a MessageBox with the designated owner.

MessageBox(java.awt.Frame owner, boolean modal)
Creates a MessageBox box with the designated owner and modality.

Method Summary

void	actionPerformed(java.awt.event.ActionEvent e) Implements the required method of the ActionListener.
protected void	adjustSize() Place the label and button and adjust the dialog dimension
void	keyPressed(java.awt.event.KeyEvent e) Implements the required method of the KeyListener.
void	keyReleased(java.awt.event.KeyEvent e) Implements the required method of the KeyListener.
void	keyTyped(java.awt.event.KeyEvent e) Implements the required method of the KeyListener.
void	show(char character) Displays the char value after converting it to a string.
void	show(char character, int x, int y) Displays the char value after converting it to a string.
void	show(double number) Displays the real number after converting it to a string.
void	show(double number, int x, int y) Displays the real number after converting it to a string.
void	show(long number) Displays the integer value after converting it to a string.
void	show(long number, int x, int y) Displays the integer value after converting it to a string.
void	show(java.lang.String text) Displays the String value.
void	show(java.lang.StringBuffer text) Displays the StringBuffer value after conveting it to a string.
void	show(java.lang.StringBuffer text, int x, int y) Displays the StringBuffer value after conveting it to a string.
void	show(java.lang.String text, int x, int y) Displays the String value.

Methods inherited from class javabook.JavaBookDialog

moveToCenter, setVisible, windowActivated, windowClosed, windowClosing, windowDeactivated, windowDeiconified, windowIconified, windowOpened

Methods inherited from class java.awt.Dialog

addNotify, dispose, getTitle, hide, isModal, isResizable, paramString, setModal, setResizable, setTitle, show

Methods inherited from class java.awt.Window

addWindowListener, applyResourceBundle, applyResourceBundle, finalize, getFocusOwner, getInputContext, getLocale, getOwnedWindows, getOwner, getToolkit, getWarningString, isShowing, pack, postEvent, processEvent, processWindowEvent, removeWindowListener, setCursor, toBack, toFront

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addImpl, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getInsets, getLayout, getMaximumSize, getMinimumSize, getPreferredSize, insets, invalidate, isAncestorOf, layout, list, list, locate, minimumSize, paint, paintComponents, preferredSize, print, printComponents, processContainerEvent, remove, remove, removeAll, removeContainerListener, removeNotify, setFont, setLayout, update, validate, validateTree

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addPropertyChangeListener, addPropertyChangeListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, getBackground, getBounds, getBounds, getColorModel, getComponentOrientation, getCursor, getDropTarget, getFont, getFontMetrics, getForeground, getGraphics, getHeight, getInputMethodRequests, getLocation, getLocation, getLocationOnScreen, getName, getParent, getPeer, getSize, getSize, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, imageUpdate, inside, isDisplayable, isDoubleBuffered, isEnabled, isFocusTraversable, isLightweight, isOpaque, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, prepareImage, prepareImage, printAll, processComponentEvent, processFocusEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, remove, removeComponentListener, removeFocusListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, reshape, resize, resize, setBackground, setBounds, setBounds, setComponentOrientation, setDropTarget, setEnabled, setForeground, setLocale, setLocation, setLocation, setName, setSize, setSize, show, size, toString, transferFocus

Methods inherited from class java.lang.Object

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

Constructor Detail

MessageBox

public MessageBox()

Default constructor. The title is fixed to "Sample Java Application".

MessageBox

public MessageBox(java.awt.Frame owner)

Creates a MessageBox with the title "Sample Java Application".

Parameters:

owner - Frame object that owns this MessageBox

MessageBox

public MessageBox(java.awt.Frame owner,
                  boolean modal)

Creates a MessageBox box with the designated owner and modality.

Parameters:

owner - Frame object that owns this MessageBox

modal - true for modal and false for modeless MessageBox

Method Detail

actionPerformed

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

Implements the required method of the ActionListener. Do not call this method. The Java virtual machine handles the action event processing. This method closes the dialog if the event is an OK button click event.

Specified by:

actionPerformed in interface java.awt.event.ActionListener

Parameters:

e - the ActionEvent object.

keyTyped

public void keyTyped(java.awt.event.KeyEvent e)

Implements the required method of the KeyListener. No response for the key typed event in this dialog.

Specified by:

keyTyped in interface java.awt.event.KeyListener

Parameters:

e - the KeyEvent object.

keyPressed

public void keyPressed(java.awt.event.KeyEvent e)

Implements the required method of the KeyListener. No response for the key typed event in this dialog.

Specified by:

keyPressed in interface java.awt.event.KeyListener

Parameters:

e - the KeyEvent object.

keyReleased

public void keyReleased(java.awt.event.KeyEvent e)

Implements the required method of the KeyListener. If the (pressed and) released key is ENTER key, then makes this dialog disappear.

Specified by:

keyReleased in interface java.awt.event.KeyListener

Parameters:

e - the KeyEvent object.

show

public void show(char character)

Displays the char value after converting it to a string.

Parameters:

character - the char value to display

show

public void show(long number)

Displays the integer value after converting it to a string.

Parameters:

number - the integer value to display

show

public void show(double number)

Displays the real number after converting it to a string.

Parameters:

number - the real value to display

show

public void show(java.lang.String text)

Displays the String value.

Parameters:

text - the String value to display

show

public void show(java.lang.StringBuffer text)

Displays the StringBuffer value after conveting it to a string.

Parameters:

text - the StringBuffer value to display

show

public void show(char character,
                 int x,
                 int y)

Displays the char value after converting it to a string. Position this dialog at (x, y).

Parameters:

character - the char value to display

x - the x-coordinate of the dialog position

y - the y-coordinate of the dialog position

show

public void show(long number,
                 int x,
                 int y)

Displays the integer value after converting it to a string. Position this dialog at (x, y).

Parameters:

number - the integer value to display

x - the x-coordinate of the dialog position

y - the y-coordinate of the dialog position

show

public void show(double number,
                 int x,
                 int y)

Displays the real number after converting it to a string. Position this dialog at (x, y).

Parameters:

number - the real value to display

x - the x-coordinate of the dialog position

y - the y-coordinate of the dialog position

show

public void show(java.lang.String text,
                 int x,
                 int y)

Displays the String value. Position this dialog at (x, y).

Parameters:

text - the String value to display

x - the x-coordinate of the dialog position

y - the y-coordinate of the dialog position

show

public void show(java.lang.StringBuffer text,
                 int x,
                 int y)

Displays the StringBuffer value after conveting it to a string. Position this dialog at (x, y).

Parameters:

text - the StringBuffer value to display

x - the x-coordinate of the dialog position

y - the y-coordinate of the dialog position

adjustSize

protected void adjustSize()

Place the label and button and adjust the dialog dimension

Overrides:

adjustSize in class JavaBookDialog