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    <p>Yes. And it can be done in just 1 (elegant) line:</p> <pre><code>List&lt;String&gt; noDups = new ArrayList&lt;String&gt;(new LinkedHashSet&lt;String&gt;(list)); </code></pre> <p>The intermediate <a href="http://docs.oracle.com/javase/7/docs/api/java/util/Set.html" rel="nofollow noreferrer"><code>Set</code></a> ensures no duplicates. The <a href="http://docs.oracle.com/javase/7/docs/api/java/util/LinkedHashSet.html" rel="nofollow noreferrer"><code>LinkedHashSet</code></a> implementation of <code>Set</code> was chosen to preserve the order of the list.</p> <p><br/> Also, on a style note:</p> <ul> <li>name your methods and parameters with names starting with a lowercase letter</li> <li>always refer to the abstract (ie <code>List</code>) rather than the concrete (ie <code>ArrayList</code>) when specifying method signatures</li> </ul> <p>Your whole method is then:</p> <pre><code>private static List&lt;String&gt; killDups(List&lt;String&gt; list) { return new ArrayList&lt;String&gt;(new LinkedHashSet&lt;String&gt;(list)); } </code></pre> <p>For extra <a href="http://en.wikipedia.org/wiki/Brownie_points" rel="nofollow noreferrer">brownie points</a> make the method generic, so it works with <em>any</em> type of <code>List</code>:</p> <pre><code>private static &lt;T&gt; List&lt;T&gt; killDups(List&lt;T&gt; list) { return new ArrayList&lt;T&gt;(new LinkedHashSet&lt;T&gt;(list)); } </code></pre> <p>If you wanted to ignore certain characters, I'd create a class for that and have a list of those. Both the <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html#hashCode()" rel="nofollow noreferrer"><code>hashCode()</code></a> and the <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html#equals(java.lang.Object)" rel="nofollow noreferrer"><code>equals()</code></a> methods are relied upon by <a href="http://docs.oracle.com/javase/7/docs/api/java/util/HashSet.html" rel="nofollow noreferrer"><code>HashSets</code></a> to remove dups:</p> <pre><code>public class MungedString { // simplified code String s; public boolean equals(Object o) { // implement how you want to compare them here } public int hashCode() { // keep this consistent with equals() } } </code></pre> <p>then</p> <pre><code>List&lt;MungedString&gt; list; List&lt;MungedString&gt; noDupList = killDups(list); </code></pre>
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    1. POIn Java, is there a more elegant way to remove duplicate strings from and ArrayList of Strings?
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    1. COThank you for the one line solution, and the additional advise! I'll do my best to earn some Brownie Points in the future. :D
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