spring
Class SpringSpanTimeApplet

java.lang.Object

  java.awt.Component

      java.awt.Container

          java.awt.Panel

              java.applet.Applet

                  spring.SpringSpanTimeApplet

All Implemented Interfaces:

javax.accessibility.Accessible, java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable

public class SpringSpanTimeApplet

extends java.applet.Applet

This applet integrates spring equation with monotonic functions. It records

the span from first peak to the second peak in displacement

time from first to second peak.

Applet uses RungeKutta to integrate SpringEquation. Applet can display monotonic functions, displacement vs. time and span v.s. time on three different panels. By default it displays only displacement v.s. time.

Author:

A.K.Nircan

See Also:

Serialized Form

Nested Class Summary

Nested classes inherited from class java.applet.Applet

java.applet.Applet.AccessibleApplet

Nested classes inherited from class java.awt.Panel

java.awt.Panel.AccessibleAWTPanel

Nested classes inherited from class java.awt.Container

java.awt.Container.AccessibleAWTContainer

Nested classes inherited from class java.awt.Component

java.awt.Component.AccessibleAWTComponent, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy

Field Summary

private java.awt.Button	button
private java.awt.Label	label
private java.awt.Label	label1
private java.awt.Panel	panelControl
private java.awt.Panel	panelDisplay
private java.awt.Panel	panelMonotonic
private java.awt.Panel	panelOutput
private java.awt.Panel	panelResults
private java.awt.TextField	textFieldfName
private java.awt.TextField	textFieldSteps

Fields inherited from class java.applet.Applet

Fields inherited from class java.awt.Panel

Fields inherited from class java.awt.Container

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

Constructor Summary

SpringSpanTimeApplet()
This is the default constructor

Method Summary

private void	action(java.lang.String steps, java.lang.String fName) Starts the action.
private void	drawMap(java.awt.Panel p, java.util.Map m, java.awt.Color c) Draws the contents of a map which stores Double pairs
private void	drawMonotonic(java.awt.Panel p, Monotonic f, java.awt.Color c) Draws the monotonic function
private java.awt.Button	getButton() This method initializes button
private java.awt.Label	getLabel() This method initializes label
private java.awt.Label	getLabel1() This method initializes label1
private java.awt.Panel	getPanelControl() This method initializes panelControl
private java.awt.Panel	getPanelDisplay() This method initializes panelDisplay
private java.awt.Panel	getPanelMonotonic() This method initializes panelMonotonic
private java.awt.Panel	getPanelOutput() This method initializes panelOutput
private java.awt.Panel	getPanelResults() This method initializes panelResults
private java.awt.TextField	getTextFieldfName() This method initializes textFieldfName
private java.awt.TextField	getTextFieldSteps() This method initializes textFieldSteps
void	init() This method initializes this
static void	main(java.lang.String[] args) Starts this applet as an application.
private void	storeArray(java.lang.Double[][] a, java.lang.String fname) Stores a Double array to a disk file under fname.
private void	storeMap(java.util.Map m, java.lang.String fname) Stores the contents of a map to a file named fname.

Methods inherited from class java.applet.Applet

destroy, getAccessibleContext, getAppletContext, getAppletInfo, getAudioClip, getAudioClip, getCodeBase, getDocumentBase, getImage, getImage, getLocale, getParameter, getParameterInfo, isActive, newAudioClip, play, play, resize, resize, setStub, showStatus, start, stop

Methods inherited from class java.awt.Panel

addNotify

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getInsets, getLayout, getListeners, getMaximumSize, getMinimumSize, getPreferredSize, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paint, paintComponents, paramString, preferredSize, print, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, removeNotify, setFocusCycleRoot, setFocusTraversalKeys, setFocusTraversalPolicy, setFont, setLayout, transferFocusBackward, transferFocusDownCycle, update, validate, validateTree

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocation, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isOpaque, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, printAll, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, reshape, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeysEnabled, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, setVisible, show, show, size, toString, transferFocus, transferFocusUpCycle

Methods inherited from class java.lang.Object

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

Field Detail

panelDisplay

private java.awt.Panel panelDisplay

panelControl

private java.awt.Panel panelControl

button

private java.awt.Button button

panelOutput

private java.awt.Panel panelOutput

panelMonotonic

private java.awt.Panel panelMonotonic

panelResults

private java.awt.Panel panelResults

textFieldSteps

private java.awt.TextField textFieldSteps

label

private java.awt.Label label

textFieldfName

private java.awt.TextField textFieldfName

label1

private java.awt.Label label1

Constructor Detail

SpringSpanTimeApplet

public SpringSpanTimeApplet()

This is the default constructor

Method Detail

main

public static void main(java.lang.String[] args)

Starts this applet as an application. No arguments are expected when calling this application from command line.

Parameters:

args - No arguments are expected. Not used.

init

public void init()

This method initializes this

Returns:

void

getPanelDisplay

private java.awt.Panel getPanelDisplay()

This method initializes panelDisplay

Returns:

java.awt.Panel

getPanelControl

private java.awt.Panel getPanelControl()

This method initializes panelControl

Returns:

java.awt.Panel

getButton

private java.awt.Button getButton()

This method initializes button

Returns:

java.awt.Button

getPanelOutput

private java.awt.Panel getPanelOutput()

This method initializes panelOutput

Returns:

java.awt.Panel

getPanelMonotonic

private java.awt.Panel getPanelMonotonic()

This method initializes panelMonotonic

Returns:

java.awt.Panel

action

private void action(java.lang.String steps,
                    java.lang.String fName)

Starts the action. This method is called when the button is hit.

drawMonotonic

private void drawMonotonic(java.awt.Panel p,
                           Monotonic f,
                           java.awt.Color c)

Draws the monotonic function

Parameters:

p - panel to be used to draw monotonic function

f - monotonic function

c - color to be used to draw the monotonic function

drawMap

private void drawMap(java.awt.Panel p,
                     java.util.Map m,
                     java.awt.Color c)

Draws the contents of a map which stores Double pairs

Parameters:

p - panel to be used to draw the map

m - map which its contents will be drawn

c - color to be used to draw the map contents

getPanelResults

private java.awt.Panel getPanelResults()

This method initializes panelResults

Returns:

java.awt.Panel

storeMap

private void storeMap(java.util.Map m,
                      java.lang.String fname)

Stores the contents of a map to a file named fname. This method opens a file with fname and writes the contents of Map m to it in text format. It stores maps with keys and values are Double.

Parameters:

m - a map with Double, Double pairs

fname - name of the file

storeArray

private void storeArray(java.lang.Double[][] a,
                        java.lang.String fname)

Stores a Double array to a disk file under fname.

Parameters:

a - array to be stored.

fname - name of the file to be created.

getTextFieldSteps

private java.awt.TextField getTextFieldSteps()

This method initializes textFieldSteps

Returns:

java.awt.TextField

getLabel

private java.awt.Label getLabel()

This method initializes label

Returns:

java.awt.Label

getTextFieldfName

private java.awt.TextField getTextFieldfName()

This method initializes textFieldfName

Returns:

java.awt.TextField

getLabel1

private java.awt.Label getLabel1()

This method initializes label1

Returns:

java.awt.Label