mpierse
/
NaiveTicket
派生自 Cohort4.2/Bluej-NaiveTicket


			
				
					
						
						
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<h2 title="Class TicketMachine" class="title">Class TicketMachine</h2>
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<li>java.lang.Object</li>
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<li>TicketMachine</li>
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<pre>public class <span class="typeNameLabel">TicketMachine</span>
extends java.lang.Object</pre>
<div class="block">TicketMachine models a naive ticket machine that issues
 flat-fare tickets.
 The price of a ticket is specified via the constructor.
 It is a naive machine in the sense that it trusts its users
 to insert enough money before trying to print a ticket.
 It also assumes that users enter sensible amounts.</div>
<dl>
<dt><span class="simpleTagLabel">Version:</span></dt>
<dd>2008.03.30</dd>
<dt><span class="simpleTagLabel">Author:</span></dt>
<dd>David J. Barnes and Michael Kolling</dd>
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<td class="colOne"><code><span class="memberNameLink"><a href="TicketMachine.html#TicketMachine-int-">TicketMachine</a></span>(int&nbsp;ticketCost)</code>
<div class="block">Create a machine that issues tickets of the given price.</div>
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<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="TicketMachine.html#getBalance--">getBalance</a></span>()</code>
<div class="block">Return the amount of money already inserted for the
 next ticket.</div>
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<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="TicketMachine.html#getPrice--">getPrice</a></span>()</code>
<div class="block">Return the price of a ticket.</div>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="TicketMachine.html#insertMoney-int-">insertMoney</a></span>(int&nbsp;amount)</code>
<div class="block">Receive an amount of money in cents from a customer.</div>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="TicketMachine.html#printTicket--">printTicket</a></span>()</code>
<div class="block">Print a ticket.</div>
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<h4>TicketMachine</h4>
<pre>public&nbsp;TicketMachine(int&nbsp;ticketCost)</pre>
<div class="block">Create a machine that issues tickets of the given price.
 Note that the price must be greater than zero, and there
 are no checks to ensure this.</div>
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<h4>getBalance</h4>
<pre>public&nbsp;int&nbsp;getBalance()</pre>
<div class="block">Return the amount of money already inserted for the
 next ticket.</div>
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<h4>getPrice</h4>
<pre>public&nbsp;int&nbsp;getPrice()</pre>
<div class="block">Return the price of a ticket.</div>
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<h4>insertMoney</h4>
<pre>public&nbsp;void&nbsp;insertMoney(int&nbsp;amount)</pre>
<div class="block">Receive an amount of money in cents from a customer.</div>
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<h4>printTicket</h4>
<pre>public&nbsp;void&nbsp;printTicket()</pre>
<div class="block">Print a ticket.
 Update the total collected and
 reduce the balance to zero.</div>
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