calculator
Class ButtonHandler

java.lang.Object
  calculator.ButtonHandler

All Implemented Interfaces:

Animate

public class ButtonHandler

extends java.lang.Object

implements Animate

This class provides the smarts for a basic four-function calculator. It repeatedly calls its Calculator(GUI)'s getButton() to consume the buttonIDs that the Calculator object produces.

Copyright (c) 1999 Massachusetts Institute of Technology

Version:

$Id: ButtonHandler.java,v 1.1.1.1 2002/06/05 21:56:34 root Exp $

Author:

Todd C. Parnell, tparnell@ai.mit.edu, Emil Sit, sit@mit.edu, Lynn Andrea Stein, las@ai.mit.edu

See Also:

Calculator, IntBuffer

Field Summary

protected CalculatorState	brains
protected Calculator	gui
protected AnimatorThread	spirit

Constructor Summary

protected	ButtonHandler()
protected	ButtonHandler(CalculatorGUI myGUI) Build a ButtonHandler object from a Calculator gui passed in as an argument.

Method Summary

void	act() Provides the interactive control loop of this animate object.

Methods inherited from class java.lang.Object

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

Field Detail

gui

protected Calculator gui

brains

protected CalculatorState brains

spirit

protected AnimatorThread spirit

Constructor Detail

ButtonHandler

protected ButtonHandler(CalculatorGUI myGUI)

Build a ButtonHandler object from a Calculator gui passed in as an argument.

ButtonHandler

protected ButtonHandler()

Method Detail

act

public void act()

Provides the interactive control loop of this animate object.

Specified by:

act in interface Animate

See Also:

Animate