Class CarWash

java.lang.Object
  CarWash

public class CarWash
extends java.lang.Object

The CarWash Java application illustrates the use of the carWashSimulate method. The illustration uses the following values:
washTime = 240
arrivalTime = 0.0025
totalTime = 6000

Java Source Code for this class:

http://www.cs.colorado.edu/~main/applications/CarWash.java

Constructor Summary

CarWash()

Method Summary

static void	carWashSimulate(int washTime, double arrivalProb, int totalTime) Simulate the running of a car washer for a specified amount of time.
static void	main(java.lang.String[] args) The main method activates carWashSimulate with the values: washTime = 240 arrivalTime = 0.0025 totalTime = 6000 The String argument (args) is not used in this implementation.

Methods inherited from class java.lang.Object

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

Constructor Detail

CarWash

public CarWash()

Method Detail

main

public static void main(java.lang.String[] args)

The main method activates carWashSimulate with the values:
washTime = 240
arrivalTime = 0.0025
totalTime = 6000
The String argument (args) is not used in this implementation.

carWashSimulate

public static void carWashSimulate(int washTime,
                                   double arrivalProb,
                                   int totalTime)

Simulate the running of a car washer for a specified amount of time.

Parameters:

washTime - the number of seconds required to wash one car

arrivalProb - the probability of a customer arriving in any second, for example 0.1 is 10%

totalTime - the total number of seconds for the simulation

Precondition:

washTime and totalTime are positive; arrivalProb lies in the range 0 to 1.

Postcondition:

The method has simulated a car wash where washTime is the number of seconds needed to wash one car, arrivalProb is the probability of a customer arriving in any second, and totalTime is the total number of seconds for the simulation. Before the simulation, the method has written its three parameters to System.out. After the simulation, the method has written two pieces of information to System.out: (1) The number of cars washed, and (2) The average waiting time for customers that had their cars washed. (Customers that are still in the queue are not included in this average).

Throws:

java.lang.IllegalArgumentException - Indicates that one of the arguments violates the precondition.