binhong
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LibrarySystem

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<div class="subTitle">libsys</div>
<h2 title="Class Handler" class="title">Class Handler</h2>
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<li>java.lang.Object</li>
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<pre>class <span class="typeNameLabel">Handler</span>
extends java.lang.Object</pre>
<div class="block">Handles all the background operations of MainGUI, also contains both UserFactory and BookFactory</div>
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<td class="colFirst"><code>(package private) <a href="../libsys/BookFactory.html" title="class in libsys">BookFactory</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../libsys/Handler.html#books">books</a></span></code>&nbsp;</td>
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<td class="colFirst"><code>private java.util.Calendar</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../libsys/Handler.html#cal">cal</a></span></code>&nbsp;</td>
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<td class="colFirst"><code>(package private) <a href="../libsys/UserFactory.html" title="class in libsys">UserFactory</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../libsys/Handler.html#users">users</a></span></code>&nbsp;</td>
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<td class="colOne"><code><span class="memberNameLink"><a href="../libsys/Handler.html#Handler--">Handler</a></span>()</code>
<div class="block">Creates new empty Handler</div>
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<td class="colFirst"><code>(package private) java.lang.String</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../libsys/Handler.html#bookIdsToTitlesString-int:A-">bookIdsToTitlesString</a></span>(int[]&nbsp;bookIDs)</code>
<div class="block">Create a String of all book titles with the given Book ids</div>
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<td class="colFirst"><code>(package private) boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../libsys/Handler.html#borrowBook-libsys.User-libsys.Book-">borrowBook</a></span>(<a href="../libsys/User.html" title="class in libsys">User</a>&nbsp;user,
          <a href="../libsys/Book.html" title="class in libsys">Book</a>&nbsp;book)</code>
<div class="block">Given User borrows the given Book</div>
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<td class="colFirst"><code>private int[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../libsys/Handler.html#calDueDate-int-">calDueDate</a></span>(int&nbsp;days)</code>
<div class="block">Calculating the due date</div>
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<td class="colFirst"><code>(package private) int[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../libsys/Handler.html#calDueDate-int-int:A-">calDueDate</a></span>(int&nbsp;days,
          int[]&nbsp;date)</code>&nbsp;</td>
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<td class="colFirst"><code>private int[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../libsys/Handler.html#currentDay--">currentDay</a></span>()</code>
<div class="block">Returns the current date in an int array</div>
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<td class="colFirst"><code>(package private) boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../libsys/Handler.html#returnBook-libsys.User-libsys.Book-">returnBook</a></span>(<a href="../libsys/User.html" title="class in libsys">User</a>&nbsp;user,
          <a href="../libsys/Book.html" title="class in libsys">Book</a>&nbsp;book)</code>
<div class="block">Given User returns the given Book</div>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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<h4>books</h4>
<pre><a href="../libsys/BookFactory.html" title="class in libsys">BookFactory</a> books</pre>
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<h4>cal</h4>
<pre>private&nbsp;java.util.Calendar cal</pre>
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<h4>users</h4>
<pre><a href="../libsys/UserFactory.html" title="class in libsys">UserFactory</a> users</pre>
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<h4>Handler</h4>
<pre>public&nbsp;Handler()</pre>
<div class="block">Creates new empty Handler</div>
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<h4>bookIdsToTitlesString</h4>
<pre>java.lang.String&nbsp;bookIdsToTitlesString(int[]&nbsp;bookIDs)</pre>
<div class="block">Create a String of all book titles with the given Book ids</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>bookIDs</code> - Array of Book ids</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>String of book titles separated with "; "</dd>
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<a name="borrowBook-libsys.User-libsys.Book-">
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<h4>borrowBook</h4>
<pre>boolean&nbsp;borrowBook(<a href="../libsys/User.html" title="class in libsys">User</a>&nbsp;user,
                   <a href="../libsys/Book.html" title="class in libsys">Book</a>&nbsp;book)</pre>
<div class="block">Given User borrows the given Book</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>user</code> - User borrowing the Book</dd>
<dd><code>book</code> - Book to be borrowed</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>If the borrow operation is successful</dd>
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<h4>calDueDate</h4>
<pre>private&nbsp;int[]&nbsp;calDueDate(int&nbsp;days)</pre>
<div class="block">Calculating the due date</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>days</code> - Amount of days to be borrowed</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Amount of days added to the current day</dd>
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<pre>int[]&nbsp;calDueDate(int&nbsp;days,
                 int[]&nbsp;date)</pre>
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<pre>private&nbsp;int[]&nbsp;currentDay()</pre>
<div class="block">Returns the current date in an int array</div>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd>date in ([YYYY][MM][DD]) format</dd>
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<h4>returnBook</h4>
<pre>boolean&nbsp;returnBook(<a href="../libsys/User.html" title="class in libsys">User</a>&nbsp;user,
                   <a href="../libsys/Book.html" title="class in libsys">Book</a>&nbsp;book)</pre>
<div class="block">Given User returns the given Book</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>user</code> - User returning the Book</dd>
<dd><code>book</code> - Book to be returned</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>If the return operation is successful</dd>
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