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<title>Simulation (Parallel Java 2 Library Documentation)</title>
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<div class="subTitle">edu.rit.sim</div>
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<h2 title="Class Simulation" class="title">Class Simulation</h2>
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<pre>public class <span class="strong">Simulation</span>
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extends <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre>
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<div class="block">Class Simulation provides a discrete event simulation. To write a discrete
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event simulation program:
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<OL TYPE=1>
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<P><LI>
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Create a Simulation object.
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<P><LI>
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Create one or more <a href="../../../edu/rit/sim/Event.html" title="class in edu.rit.sim">Event</a>s and add them to the simulation (by
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calling the <a href="../../../edu/rit/sim/Simulation.html#doAt(double, edu.rit.sim.Event)"><code>doAt()</code></a> or <a href="../../../edu/rit/sim/Simulation.html#doAfter(double, edu.rit.sim.Event)"><code>doAfter()</code></a> methods).
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<P><LI>
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Run the simulation (by calling the <a href="../../../edu/rit/sim/Simulation.html#run()"><code>run()</code></a> method). The
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simulation performs events, by calling each event's <a href="../../../edu/rit/sim/Event.html#perform()"><code>perform()</code></a> method, in order according to the events' simulation times, as
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returned by each event's <a href="../../../edu/rit/sim/Event.html#time()"><code>time()</code></a> method. Performing an
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event may cause further events to be created and added to the simulation.
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<P><LI>
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When there are no more events, the simulation is finished. At this point the
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simulation's <a href="../../../edu/rit/sim/Simulation.html#run()"><code>run()</code></a> method returns.
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</OL></div>
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<h3>Constructor Summary</h3>
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<caption><span>Constructors</span><span class="tabEnd"> </span></caption>
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<tr>
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<th class="colOne" scope="col">Constructor and Description</th>
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<tr class="altColor">
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<td class="colOne"><code><strong><a href="../../../edu/rit/sim/Simulation.html#Simulation()">Simulation</a></strong>()</code>
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<div class="block">Construct a new simulation.</div>
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</td>
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</tr>
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<caption><span>Methods</span><span class="tabEnd"> </span></caption>
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<tr>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<th class="colLast" scope="col">Method and Description</th>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code>void</code></td>
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<td class="colLast"><code><strong><a href="../../../edu/rit/sim/Simulation.html#doAfter(double, edu.rit.sim.Event)">doAfter</a></strong>(double dt,
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<a href="../../../edu/rit/sim/Event.html" title="class in edu.rit.sim">Event</a> event)</code>
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<div class="block">Schedule the given event to be performed at a time <TT>dt</TT> in the
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future (at current simulation time + <TT>dt</TT>) in this simulation.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><code>void</code></td>
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<td class="colLast"><code><strong><a href="../../../edu/rit/sim/Simulation.html#doAt(double, edu.rit.sim.Event)">doAt</a></strong>(double t,
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<a href="../../../edu/rit/sim/Event.html" title="class in edu.rit.sim">Event</a> event)</code>
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<div class="block">Schedule the given event to be performed at the given time in this
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simulation.</div>
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</td>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code>void</code></td>
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<td class="colLast"><code><strong><a href="../../../edu/rit/sim/Simulation.html#run()">run</a></strong>()</code>
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<div class="block">Run the simulation.</div>
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</td>
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</tr>
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<tr class="rowColor">
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<td class="colFirst"><code>double</code></td>
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<td class="colLast"><code><strong><a href="../../../edu/rit/sim/Simulation.html#time()">time</a></strong>()</code>
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<div class="block">Returns the current simulation time.</div>
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</td>
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<h3>Constructor Detail</h3>
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<a name="Simulation()">
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<h4>Simulation</h4>
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<pre>public Simulation()</pre>
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<div class="block">Construct a new simulation.</div>
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</li>
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<a name="time()">
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<h4>time</h4>
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<pre>public double time()</pre>
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<div class="block">Returns the current simulation time.</div>
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<dl><dt><span class="strong">Returns:</span></dt><dd>Simulation time.</dd></dl>
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</li>
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</ul>
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<a name="doAt(double, edu.rit.sim.Event)">
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<h4>doAt</h4>
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<pre>public void doAt(double t,
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<a href="../../../edu/rit/sim/Event.html" title="class in edu.rit.sim">Event</a> event)</pre>
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<div class="block">Schedule the given event to be performed at the given time in this
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simulation.</div>
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<dl><dt><span class="strong">Parameters:</span></dt><dd><code>t</code> - Simulation time for <TT>event</TT>.</dd><dd><code>event</code> - Event to be performed.</dd>
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<dt><span class="strong">Throws:</span></dt>
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<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - (unchecked exception) Thrown if <TT>t</TT> is less than the current
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simulation time.</dd>
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<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</a></code> - (unchecked exception) Thrown if <TT>event</TT> is null.</dd></dl>
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<h4>doAfter</h4>
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<pre>public void doAfter(double dt,
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<a href="../../../edu/rit/sim/Event.html" title="class in edu.rit.sim">Event</a> event)</pre>
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<div class="block">Schedule the given event to be performed at a time <TT>dt</TT> in the
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future (at current simulation time + <TT>dt</TT>) in this simulation.</div>
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<dl><dt><span class="strong">Parameters:</span></dt><dd><code>dt</code> - Simulation time delta for <TT>event</TT>.</dd><dd><code>event</code> - Event to be performed.</dd>
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<dt><span class="strong">Throws:</span></dt>
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<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - (unchecked exception) Thrown if <TT>dt</TT> is less than zero.</dd>
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<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</a></code> - (unchecked exception) Thrown if <TT>event</TT> is null.</dd></dl>
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<h4>run</h4>
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<pre>public void run()</pre>
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<div class="block">Run the simulation. At the start of the simulation, the simulation time
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is 0. The <TT>run()</TT> method returns when there are no more events.</div>
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<p class="legalCopy"><small><FONT SIZE="-2">Copyright © 2013–2016 by Alan Kaminsky. All rights reserved. Send comments to ark</FONT><FONT SIZE="1" COLOR="#FFFFFF">­</FONT><FONT SIZE="-2">@</FONT><FONT SIZE="1" COLOR="#FFFFFF">­</FONT><FONT SIZE="-2">cs.rit.edu.</FONT></small></p>
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