sjm.examples.design
Class RunningAverage

java.lang.Object
  |
  +--sjm.examples.design.RunningAverage

public class RunningAverage

extends java.lang.Object

implements PubliclyCloneable

Objects of this class maintain a running average. Each number that is added with the add method increases the count by 1, and the total by the amount added.

Field Summary

protected double	count
protected double	total

Constructor Summary

RunningAverage()

Method Summary

void	add(double d) Add a value to the running average, increasing the count by 1 and the total by the given value.
double	average() Return the average so far.
java.lang.Object	clone() Return a copy of this object.

Methods inherited from class java.lang.Object

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

Field Detail

count

protected double count

total

protected double total

Constructor Detail

RunningAverage

public RunningAverage()

Method Detail

add

public void add(double d)

Add a value to the running average, increasing the count by 1 and the total by the given value.

Parameters:

double - the value to add into the running average

average

public double average()

Return the average so far.

Returns:

the average so far

clone

public java.lang.Object clone()

Return a copy of this object.

Specified by:

clone in interface PubliclyCloneable

Overrides:

clone in class java.lang.Object

Returns:

a copy of this object