headfirst.observer.WeatherStationObservable

Class StatisticsDisplay

java.lang.Object

headfirst.observer.WeatherStationObservable.StatisticsDisplay

All Implemented Interfaces:

DisplayElement, java.util.Observer

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

Field Summary

Fields

Modifier and Type	Field and Description
private float	maxTemp
private float	minTemp
private int	numReadings
private float	tempSum

Constructor Summary

Constructors

Constructor and Description
StatisticsDisplay(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

maxTemp

private float maxTemp

minTemp

private float minTemp

tempSum

private float tempSum

numReadings

private int numReadings

Constructor Detail

StatisticsDisplay

public StatisticsDisplay(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