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POList<Arraylist<T>>> changes multiple entrys
 

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  1. POList<Arraylist<T>>> changes multiple entrys
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    <p>I have a <code>List&lt;ArrayList &lt;T&gt;&gt;</code> called <code>arraylist</code> and for example I want to change just</p> <pre><code>arraylist.get(4).get(6) </code></pre> <p>by</p> <pre><code>arraylist.get(4).get(6).setName(), </code></pre> <p>it also changes </p> <pre><code>arraylist.get(0).get(6), arraylist.get(1).get(6), arraylist.get(2).get(6), arraylist.get(3).get(6). </code></pre> <p>What can I do to avoid this mistake? I need a list of <code>arraylist</code> because it will be the data for a dynamically generated Adapter for a <code>listview</code>.</p> <p>Has it something to do with <a href="https://stackoverflow.com/questions/7787531/arraylists-setting-a-value-on-one-arraylist-changes-a-value-on-another">this question</a>?</p> <p>Regarding it's(of the link/question above) solution: I can't create the <code>ArrayList&lt;T&gt;</code> from scratch, because I don't know how many there are going to be. (it will be calculated at runtime) </p> <p><strong>Edit:</strong></p> <p>Thanks for your comments yet and i'm sorry I'm new at Stackoverflow:</p> <ol> <li><p>It's Android</p></li> <li><p>what is supposed to happen: I have a List of ArrayLists of <code>&lt;T&gt;</code> (i need it because it gives dynamically the data for an ListView Adapter) and i just want to change one entry of one ArrayList for example the 6th entry of the 4th ArrayList</p></li> <li><p>But what happens is: It changes also the 6th entry of the 1st ArrayList, the 6th entry of the 2nd ArrayList and the 6th entry of the 3rd ArrayList.</p></li> </ol>
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    1. USCommunity
    1. USuser2240187
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    1. COClarify your question please, whats happening and whats supposed to happen?
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    2. COIs it Java ? C# ? please explicit the language used.
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      1. USAralicia
    3. CO`listview` is mentioned methinks its android?
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