Package ball.riddler538.ant.taskdefs

Class SolveRiddle20160219Task

java.lang.Object

org.apache.tools.ant.ProjectComponent

org.apache.tools.ant.Task

ball.riddler538.ant.taskdefs.AbstractTask

ball.riddler538.ant.taskdefs.AbstractSimulationTask

ball.riddler538.ant.taskdefs.SolveRiddle20160219Task

All Implemented Interfaces:

AnnotatedAntTask, AntTaskLogMethods, AntTaskMixIn, ClasspathDelegateAntTask, ConfigurableAntTask, Cloneable

@AntTask("solve-riddle-2016-02-19")
public class SolveRiddle20160219Task
extends AbstractSimulationTask

Ant Task to solve Will Someone Be Sitting In Your Seat On The Plane?

There's an airplane with 100 seats, and there are 100 ticketed passengers each with an assigned seat. They line up to board in some random order. However, the first person to board is the worst person alive, and just sits in a random seat, without even looking at his boarding pass. Each subsequent passenger sits in his or her own assigned seat if it's empty, but sits in a random open seat if the assigned seat is occupied. What is the probability that you, the hundredth passenger to board, finds your seat unoccupied?

Solution uses the Monte Carlo method.

<solve-riddle-2016-02-19 classname="String" classpathref="Reference" count="int" description="String" passengers="int" seats="int" taskname="String">
  <classpath .../>
</solve-riddle-2016-02-19>

Author:

Allen D. Ball

Field Summary

Fields inherited from class org.apache.tools.ant.Task

target, taskName, taskType, wrapper

Fields inherited from class org.apache.tools.ant.ProjectComponent

description, location, project

Constructor Summary

Constructors

Constructor	Description
SolveRiddle20160219Task()

Method Summary

Modifier and Type	Method	Description
void	execute()

Methods inherited from class ball.riddler538.ant.taskdefs.AbstractSimulationTask

asPercent

Methods inherited from class ball.riddler538.ant.taskdefs.AbstractTask

init

Methods inherited from class org.apache.tools.ant.Task

bindToOwner, getOwningTarget, getRuntimeConfigurableWrapper, getTaskName, getTaskType, getWrapper, handleErrorFlush, handleErrorOutput, handleFlush, handleInput, handleOutput, isInvalid, log, log, log, log, maybeConfigure, perform, reconfigure, setOwningTarget, setRuntimeConfigurableWrapper, setTaskName, setTaskType

Methods inherited from class org.apache.tools.ant.ProjectComponent

clone, getDescription, getLocation, getProject, setDescription, setLocation, setProject

Methods inherited from class java.lang.Object

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

Methods inherited from interface ball.util.ant.taskdefs.AnnotatedAntTask

getAntTaskName

Methods inherited from interface ball.util.ant.taskdefs.AntTaskLogMethods

log, log, log, log, log, log, log, log, log, log, log

Methods inherited from interface ball.util.ant.taskdefs.ClasspathDelegateAntTask

createClasspath, delegate, delegate, getClassForName, getClassLoader, setClassname, setClasspathref

Methods inherited from interface ball.util.ant.taskdefs.ConfigurableAntTask

configure

Constructor Detail

SolveRiddle20160219Task

public SolveRiddle20160219Task()

Method Detail

execute

public void execute()
             throws BuildException

Specified by:

execute in interface AnnotatedAntTask

Overrides:

execute in class AbstractTask

Throws:

BuildException