jaxx.demo.fun
Class CalculatorEngine

java.lang.Object
  jaxx.demo.fun.CalculatorEngine

public class CalculatorEngine
extends Object

Field Summary

static int	ADD
static String	DISPLAY_TEXT_PROPERTY
static int	DIVIDE
static int	MULTIPLY
static int	RESULT
static int	SUBTRACT

Constructor Summary

CalculatorEngine()

Method Summary

void	add()
void	addPropertyChangeListener(PropertyChangeListener listener)
void	addPropertyChangeListener(String property, PropertyChangeListener listener)
void	clear()
void	clearEntry()
void	digit(int digit)
void	divide()
void	dot()
void	equal()
protected void	firePropertyChange(String property, Object oldValue, Object newValue)
String	getDisplayText()
void	multiply()
void	operation(int operation)
void	removePropertyChangeListener(PropertyChangeListener listener)
void	removePropertyChangeListener(String property, PropertyChangeListener listener)
void	setDisplayText(String displayText)
void	subtract()
void	toggleSign()
static String	toString(BigDecimal decimal)

Methods inherited from class java.lang.Object

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

Field Detail

DISPLAY_TEXT_PROPERTY

public static final String DISPLAY_TEXT_PROPERTY

See Also:

Constant Field Values

ADD

public static final int ADD

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Constant Field Values

SUBTRACT

public static final int SUBTRACT

See Also:

Constant Field Values

MULTIPLY

public static final int MULTIPLY

See Also:

Constant Field Values

DIVIDE

public static final int DIVIDE

See Also:

Constant Field Values

RESULT

public static final int RESULT

See Also:

Constant Field Values

Constructor Detail

CalculatorEngine

public CalculatorEngine()

Method Detail

getDisplayText

public String getDisplayText()

setDisplayText

public void setDisplayText(String displayText)

clear

public void clear()

clearEntry

public void clearEntry()

digit

public void digit(int digit)

dot

public void dot()

toggleSign

public void toggleSign()

equal

public void equal()

toString

public static String toString(BigDecimal decimal)

operation

public void operation(int operation)

add

public void add()

subtract

public void subtract()

multiply

public void multiply()

divide

public void divide()

addPropertyChangeListener

public void addPropertyChangeListener(PropertyChangeListener listener)

addPropertyChangeListener

public void addPropertyChangeListener(String property,
                                      PropertyChangeListener listener)

removePropertyChangeListener

public void removePropertyChangeListener(PropertyChangeListener listener)

removePropertyChangeListener

public void removePropertyChangeListener(String property,
                                         PropertyChangeListener listener)

firePropertyChange

protected void firePropertyChange(String property,
                                  Object oldValue,
                                  Object newValue)