headfirst.observer.WeatherStationObservable

Class ForecastDisplay

java.lang.Object

headfirst.observer.WeatherStationObservable.ForecastDisplay

All Implemented Interfaces:

DisplayElement, java.util.Observer

public class ForecastDisplay
extends java.lang.Object
implements java.util.Observer, DisplayElement

Field Summary

Fields

Modifier and Type	Field and Description
private float	currentPressure
private float	lastPressure

Constructor Summary

Constructors

Constructor and Description
ForecastDisplay(java.util.Observable observable)

Method Summary

Modifier and Type	Method and Description
void	display()
void	update(java.util.Observable observable, java.lang.Object arg)

Methods inherited from class java.lang.Object

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

Field Detail

currentPressure

private float currentPressure

lastPressure

private float lastPressure

Constructor Detail

ForecastDisplay

public ForecastDisplay(java.util.Observable observable)

Method Detail

update

public void update(java.util.Observable observable,
                   java.lang.Object arg)

Specified by:

update in interface java.util.Observer

display

public void display()

Specified by:

display in interface DisplayElement