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<!DOCTYPE HTML>
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<title>MusicHub (spoteezer 0.1.0 API)</title>
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<div class="sub-title"><span class="package-label-in-type">Package</span> <a href="package-summary.html">musichub.business</a></div>
<h1 title="Class MusicHub" class="title">Class MusicHub</h1>
</div>
<div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">java.lang.Object</a>
<div class="inheritance">musichub.business.MusicHub</div>
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<section class="description">
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<div class="type-signature"><span class="modifiers">public class </span><span class="element-name type-name-label">MusicHub</span>
<span class="extends-implements">extends <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></span></div>
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<!-- =========== FIELD SUMMARY =========== -->
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<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Field</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color"><code>static <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div>
<div class="col-second even-row-color"><code><span class="member-name-link"><a href="#ALBUMS_FILE_PATH">ALBUMS_FILE_PATH</a></span></code></div>
<div class="col-last even-row-color"> </div>
<div class="col-first odd-row-color"><code>static <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div>
<div class="col-second odd-row-color"><code><span class="member-name-link"><a href="#DIR">DIR</a></span></code></div>
<div class="col-last odd-row-color"> </div>
<div class="col-first even-row-color"><code>static <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div>
<div class="col-second even-row-color"><code><span class="member-name-link"><a href="#ELEMENTS_FILE_PATH">ELEMENTS_FILE_PATH</a></span></code></div>
<div class="col-last even-row-color"> </div>
<div class="col-first odd-row-color"><code>static <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div>
<div class="col-second odd-row-color"><code><span class="member-name-link"><a href="#PLAYLISTS_FILE_PATH">PLAYLISTS_FILE_PATH</a></span></code></div>
<div class="col-last odd-row-color"> </div>
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<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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<h2>Constructor Summary</h2>
<div class="caption"><span>Constructors</span></div>
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<div class="table-header col-first">Constructor</div>
<div class="table-header col-last">Description</div>
<div class="col-constructor-name even-row-color"><code><span class="member-name-link"><a href="#%3Cinit%3E()">MusicHub</a></span>()</code></div>
<div class="col-last even-row-color"> </div>
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<!-- ========== METHOD SUMMARY =========== -->
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<h2>Method Summary</h2>
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<div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab4', 3)" class="table-tab">Concrete Methods</button></div>
<div id="method-summary-table.tabpanel" role="tabpanel">
<div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0">
<div class="table-header col-first">Modifier and Type</div>
<div class="table-header col-second">Method</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>void</code></div>
<div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#addAlbum(musichub.business.Album)">addAlbum</a></span>​(<a href="Album.html" title="class in musichub.business">Album</a> album)</code></div>
<div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> </div>
<div class="col-first odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>void</code></div>
<div class="col-second odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#addElement(musichub.business.AudioElement)">addElement</a></span>​(<a href="AudioElement.html" title="class in musichub.business">AudioElement</a> element)</code></div>
<div class="col-last odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> </div>
<div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>void</code></div>
<div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#addElementToAlbum(java.lang.String,java.lang.String)">addElementToAlbum</a></span>​(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a> elementTitle,
<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a> albumTitle)</code></div>
<div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> </div>
<div class="col-first odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>void</code></div>
<div class="col-second odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#addElementToPlayList(java.lang.String,java.lang.String)">addElementToPlayList</a></span>​(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a> elementTitle,
<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a> playListTitle)</code></div>
<div class="col-last odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> </div>
<div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>void</code></div>
<div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#addPlaylist(musichub.business.PlayList)">addPlaylist</a></span>​(<a href="PlayList.html" title="class in musichub.business">PlayList</a> playlist)</code></div>
<div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> </div>
<div class="col-first odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link">Iterator</a><<a href="Album.html" title="class in musichub.business">Album</a>></code></div>
<div class="col-second odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#albums()">albums</a></span>()</code></div>
<div class="col-last odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> </div>
<div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>void</code></div>
<div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#deletePlayList(java.lang.String)">deletePlayList</a></span>​(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a> playListTitle)</code></div>
<div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> </div>
<div class="col-first odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link">Iterator</a><<a href="AudioElement.html" title="class in musichub.business">AudioElement</a>></code></div>
<div class="col-second odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#elements()">elements</a></span>()</code></div>
<div class="col-last odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> </div>
<div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="AudioElement.html" title="class in musichub.business">AudioElement</a>></code></div>
<div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getAlbumSongs(java.lang.String)">getAlbumSongs</a></span>​(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a> albumTitle)</code></div>
<div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> </div>
<div class="col-first odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="Song.html" title="class in musichub.business">Song</a>></code></div>
<div class="col-second odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getAlbumSongsSortedByGenre(java.lang.String)">getAlbumSongsSortedByGenre</a></span>​(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a> albumTitle)</code></div>
<div class="col-last odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> </div>
<div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div>
<div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getAlbumsTitlesSortedByDate()">getAlbumsTitlesSortedByDate</a></span>()</code></div>
<div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> </div>
<div class="col-first odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div>
<div class="col-second odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getAudiobooksTitlesSortedByAuthor()">getAudiobooksTitlesSortedByAuthor</a></span>()</code></div>
<div class="col-last odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> </div>
<div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>void</code></div>
<div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getAudioElement(java.util.List,java.lang.String)">getAudioElement</a></span>​(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="AudioElement.html" title="class in musichub.business">AudioElement</a>> audios,
<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a> elementTitle)</code></div>
<div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> </div>
<div class="col-first odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="AudioElement.html" title="class in musichub.business">AudioElement</a>></code></div>
<div class="col-second odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getPlayListSongs(java.lang.String)">getPlayListSongs</a></span>​(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a> playListTitle)</code></div>
<div class="col-last odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table">
<div class="block">Method checking the songs contained in a chosen playlist and returning them if found.</div>
</div>
<div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div>
<div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#getPlayListsTitles()">getPlayListsTitles</a></span>()</code></div>
<div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table">
<div class="block">Method getting a list of playlists</div>
</div>
<div class="col-first odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link">Iterator</a><<a href="PlayList.html" title="class in musichub.business">PlayList</a>></code></div>
<div class="col-second odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#playlists()">playlists</a></span>()</code></div>
<div class="col-last odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> </div>
<div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>void</code></div>
<div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#saveAlbums()">saveAlbums</a></span>()</code></div>
<div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> </div>
<div class="col-first odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>void</code></div>
<div class="col-second odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#saveElements()">saveElements</a></span>()</code></div>
<div class="col-last odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> </div>
<div class="col-first even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>void</code></div>
<div class="col-second even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#savePlayLists()">savePlayLists</a></span>()</code></div>
<div class="col-last even-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> </div>
<div class="col-first odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code>void</code></div>
<div class="col-second odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"><code><span class="member-name-link"><a href="#searchAudioElement()">searchAudioElement</a></span>()</code></div>
<div class="col-last odd-row-color method-summary-table-tab2 method-summary-table-tab4 method-summary-table"> </div>
</div>
</div>
</div>
<div class="inherited-list">
<h3 id="methods.inherited.from.class.java.lang.Object">Methods inherited from class java.lang.<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></h3>
<code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link">clone</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link">equals</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link">notify</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#toString()" title="class or interface in java.lang" class="external-link">toString</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link">wait</a></code></div>
</section>
</li>
</ul>
</section>
<section class="details">
<ul class="details-list">
<!-- ============ FIELD DETAIL =========== -->
<li>
<section class="field-details" id="field.detail">
<h2>Field Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="DIR">
<h3>DIR</h3>
<div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name">DIR</span></div>
</section>
</li>
<li>
<section class="detail" id="ALBUMS_FILE_PATH">
<h3>ALBUMS_FILE_PATH</h3>
<div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name">ALBUMS_FILE_PATH</span></div>
</section>
</li>
<li>
<section class="detail" id="PLAYLISTS_FILE_PATH">
<h3>PLAYLISTS_FILE_PATH</h3>
<div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name">PLAYLISTS_FILE_PATH</span></div>
</section>
</li>
<li>
<section class="detail" id="ELEMENTS_FILE_PATH">
<h3>ELEMENTS_FILE_PATH</h3>
<div class="member-signature"><span class="modifiers">public static final</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name">ELEMENTS_FILE_PATH</span></div>
</section>
</li>
</ul>
</section>
</li>
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<li>
<section class="constructor-details" id="constructor.detail">
<h2>Constructor Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="<init>()">
<h3>MusicHub</h3>
<div class="member-signature"><span class="modifiers">public</span> <span class="element-name">MusicHub</span>()</div>
</section>
</li>
</ul>
</section>
</li>
<!-- ============ METHOD DETAIL ========== -->
<li>
<section class="method-details" id="method.detail">
<h2>Method Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="addElement(musichub.business.AudioElement)">
<h3>addElement</h3>
<div class="member-signature"><span class="modifiers">public</span> <span class="return-type">void</span> <span class="element-name">addElement</span>​<span class="parameters">(<a href="AudioElement.html" title="class in musichub.business">AudioElement</a> element)</span></div>
</section>
</li>
<li>
<section class="detail" id="addAlbum(musichub.business.Album)">
<h3>addAlbum</h3>
<div class="member-signature"><span class="modifiers">public</span> <span class="return-type">void</span> <span class="element-name">addAlbum</span>​<span class="parameters">(<a href="Album.html" title="class in musichub.business">Album</a> album)</span></div>
</section>
</li>
<li>
<section class="detail" id="addPlaylist(musichub.business.PlayList)">
<h3>addPlaylist</h3>
<div class="member-signature"><span class="modifiers">public</span> <span class="return-type">void</span> <span class="element-name">addPlaylist</span>​<span class="parameters">(<a href="PlayList.html" title="class in musichub.business">PlayList</a> playlist)</span></div>
</section>
</li>
<li>
<section class="detail" id="deletePlayList(java.lang.String)">
<h3>deletePlayList</h3>
<div class="member-signature"><span class="modifiers">public</span> <span class="return-type">void</span> <span class="element-name">deletePlayList</span>​<span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a> playListTitle)</span>
throws <span class="exceptions"><a href="NoPlayListFoundException.html" title="class in musichub.business">NoPlayListFoundException</a></span></div>
<dl class="notes">
<dt>Throws:</dt>
<dd><code><a href="NoPlayListFoundException.html" title="class in musichub.business">NoPlayListFoundException</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="albums()">
<h3>albums</h3>
<div class="member-signature"><span class="modifiers">public</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link">Iterator</a><<a href="Album.html" title="class in musichub.business">Album</a>></span> <span class="element-name">albums</span>()</div>
</section>
</li>
<li>
<section class="detail" id="playlists()">
<h3>playlists</h3>
<div class="member-signature"><span class="modifiers">public</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link">Iterator</a><<a href="PlayList.html" title="class in musichub.business">PlayList</a>></span> <span class="element-name">playlists</span>()</div>
</section>
</li>
<li>
<section class="detail" id="elements()">
<h3>elements</h3>
<div class="member-signature"><span class="modifiers">public</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link">Iterator</a><<a href="AudioElement.html" title="class in musichub.business">AudioElement</a>></span> <span class="element-name">elements</span>()</div>
</section>
</li>
<li>
<section class="detail" id="getAlbumsTitlesSortedByDate()">
<h3>getAlbumsTitlesSortedByDate</h3>
<div class="member-signature"><span class="modifiers">public</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name">getAlbumsTitlesSortedByDate</span>()</div>
</section>
</li>
<li>
<section class="detail" id="getAudiobooksTitlesSortedByAuthor()">
<h3>getAudiobooksTitlesSortedByAuthor</h3>
<div class="member-signature"><span class="modifiers">public</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name">getAudiobooksTitlesSortedByAuthor</span>()</div>
</section>
</li>
<li>
<section class="detail" id="getAlbumSongs(java.lang.String)">
<h3>getAlbumSongs</h3>
<div class="member-signature"><span class="modifiers">public</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="AudioElement.html" title="class in musichub.business">AudioElement</a>></span> <span class="element-name">getAlbumSongs</span>​<span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a> albumTitle)</span>
throws <span class="exceptions"><a href="NoAlbumFoundException.html" title="class in musichub.business">NoAlbumFoundException</a></span></div>
<dl class="notes">
<dt>Throws:</dt>
<dd><code><a href="NoAlbumFoundException.html" title="class in musichub.business">NoAlbumFoundException</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getAlbumSongsSortedByGenre(java.lang.String)">
<h3>getAlbumSongsSortedByGenre</h3>
<div class="member-signature"><span class="modifiers">public</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="Song.html" title="class in musichub.business">Song</a>></span> <span class="element-name">getAlbumSongsSortedByGenre</span>​<span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a> albumTitle)</span>
throws <span class="exceptions"><a href="NoAlbumFoundException.html" title="class in musichub.business">NoAlbumFoundException</a></span></div>
<dl class="notes">
<dt>Throws:</dt>
<dd><code><a href="NoAlbumFoundException.html" title="class in musichub.business">NoAlbumFoundException</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="addElementToAlbum(java.lang.String,java.lang.String)">
<h3>addElementToAlbum</h3>
<div class="member-signature"><span class="modifiers">public</span> <span class="return-type">void</span> <span class="element-name">addElementToAlbum</span>​<span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a> elementTitle,
<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a> albumTitle)</span>
throws <span class="exceptions"><a href="NoAlbumFoundException.html" title="class in musichub.business">NoAlbumFoundException</a>,
<a href="NoElementFoundException.html" title="class in musichub.business">NoElementFoundException</a></span></div>
<dl class="notes">
<dt>Throws:</dt>
<dd><code><a href="NoAlbumFoundException.html" title="class in musichub.business">NoAlbumFoundException</a></code></dd>
<dd><code><a href="NoElementFoundException.html" title="class in musichub.business">NoElementFoundException</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="addElementToPlayList(java.lang.String,java.lang.String)">
<h3>addElementToPlayList</h3>
<div class="member-signature"><span class="modifiers">public</span> <span class="return-type">void</span> <span class="element-name">addElementToPlayList</span>​<span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a> elementTitle,
<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a> playListTitle)</span>
throws <span class="exceptions"><a href="NoPlayListFoundException.html" title="class in musichub.business">NoPlayListFoundException</a>,
<a href="NoElementFoundException.html" title="class in musichub.business">NoElementFoundException</a></span></div>
<dl class="notes">
<dt>Throws:</dt>
<dd><code><a href="NoPlayListFoundException.html" title="class in musichub.business">NoPlayListFoundException</a></code></dd>
<dd><code><a href="NoElementFoundException.html" title="class in musichub.business">NoElementFoundException</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="saveAlbums()">
<h3>saveAlbums</h3>
<div class="member-signature"><span class="modifiers">public</span> <span class="return-type">void</span> <span class="element-name">saveAlbums</span>()</div>
</section>
</li>
<li>
<section class="detail" id="savePlayLists()">
<h3>savePlayLists</h3>
<div class="member-signature"><span class="modifiers">public</span> <span class="return-type">void</span> <span class="element-name">savePlayLists</span>()</div>
</section>
</li>
<li>
<section class="detail" id="saveElements()">
<h3>saveElements</h3>
<div class="member-signature"><span class="modifiers">public</span> <span class="return-type">void</span> <span class="element-name">saveElements</span>()</div>
</section>
</li>
<li>
<section class="detail" id="getAudioElement(java.util.List,java.lang.String)">
<h3>getAudioElement</h3>
<div class="member-signature"><span class="modifiers">public</span> <span class="return-type">void</span> <span class="element-name">getAudioElement</span>​<span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="AudioElement.html" title="class in musichub.business">AudioElement</a>> audios,
<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a> elementTitle)</span>
throws <span class="exceptions"><a href="NoAlbumFoundException.html" title="class in musichub.business">NoAlbumFoundException</a>,
<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.desktop/javax/sound/sampled/UnsupportedAudioFileException.html" title="class or interface in javax.sound.sampled" class="external-link">UnsupportedAudioFileException</a>,
<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a>,
<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.desktop/javax/sound/sampled/LineUnavailableException.html" title="class or interface in javax.sound.sampled" class="external-link">LineUnavailableException</a></span></div>
<dl class="notes">
<dt>Throws:</dt>
<dd><code><a href="NoAlbumFoundException.html" title="class in musichub.business">NoAlbumFoundException</a></code></dd>
<dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.desktop/javax/sound/sampled/UnsupportedAudioFileException.html" title="class or interface in javax.sound.sampled" class="external-link">UnsupportedAudioFileException</a></code></dd>
<dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></code></dd>
<dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.desktop/javax/sound/sampled/LineUnavailableException.html" title="class or interface in javax.sound.sampled" class="external-link">LineUnavailableException</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="searchAudioElement()">
<h3>searchAudioElement</h3>
<div class="member-signature"><span class="modifiers">public</span> <span class="return-type">void</span> <span class="element-name">searchAudioElement</span>()
throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.desktop/javax/sound/sampled/UnsupportedAudioFileException.html" title="class or interface in javax.sound.sampled" class="external-link">UnsupportedAudioFileException</a>,
<a href="NoAlbumFoundException.html" title="class in musichub.business">NoAlbumFoundException</a>,
<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.desktop/javax/sound/sampled/LineUnavailableException.html" title="class or interface in javax.sound.sampled" class="external-link">LineUnavailableException</a>,
<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a>,
<a href="NoElementFoundException.html" title="class in musichub.business">NoElementFoundException</a></span></div>
<dl class="notes">
<dt>Throws:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.desktop/javax/sound/sampled/UnsupportedAudioFileException.html" title="class or interface in javax.sound.sampled" class="external-link">UnsupportedAudioFileException</a></code></dd>
<dd><code><a href="NoAlbumFoundException.html" title="class in musichub.business">NoAlbumFoundException</a></code></dd>
<dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.desktop/javax/sound/sampled/LineUnavailableException.html" title="class or interface in javax.sound.sampled" class="external-link">LineUnavailableException</a></code></dd>
<dd><code><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></code></dd>
<dd><code><a href="NoElementFoundException.html" title="class in musichub.business">NoElementFoundException</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getPlayListsTitles()">
<h3>getPlayListsTitles</h3>
<div class="member-signature"><span class="modifiers">public</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name">getPlayListsTitles</span>()</div>
<div class="block">Method getting a list of playlists</div>
<dl class="notes">
<dt>Returns:</dt>
<dd>a list of playlist titles</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getPlayListSongs(java.lang.String)">
<h3>getPlayListSongs</h3>
<div class="member-signature"><span class="modifiers">public</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="AudioElement.html" title="class in musichub.business">AudioElement</a>></span> <span class="element-name">getPlayListSongs</span>​<span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/16/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a> playListTitle)</span>
throws <span class="exceptions"><a href="NoPlayListFoundException.html" title="class in musichub.business">NoPlayListFoundException</a></span></div>
<div class="block">Method checking the songs contained in a chosen playlist and returning them if found.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>playListTitle</code> - the title of a (chosen) playlist</dd>
<dt>Returns:</dt>
<dd>a list of songs from a playlist</dd>
<dt>Throws:</dt>
<dd><code><a href="NoPlayListFoundException.html" title="class in musichub.business">NoPlayListFoundException</a></code> - if the chosen playlist doesn't exist</dd>
</dl>
</section>
</li>
</ul>
</section>
</li>
</ul>
</section>
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