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    <p>There are three cases to consider.</p> <ol> <li><p>Java built-in libraries.</p> <p>That is, anything described <a href="http://docs.oracle.com/javase/6/docs/api/" rel="noreferrer">here</a>. These items can simply be called directly. For example:</p> <pre><code>map = java.util.HashMap; map.put(1,10); map.put(2,30); map.get(1) %returns 10 </code></pre> <p>The only complication is the mapping Matlab performs between Matlab data types and Java data types. These mappings are described <a href="http://www.mathworks.com/help/matlab/matlab_external/passing-data-to-a-java-method.html" rel="noreferrer">here (Matlab to Java)</a> and <a href="http://www.mathworks.com/help/matlab/matlab_external/handling-data-returned-from-a-java-method.html" rel="noreferrer">here (Java to Matlab)</a>. (tl; dr: usually the mappings are as you would expect)</p></li> <li><p>Precompiled *.jar files</p> <p>You first need to add these to Matlab's java class path. You can do this dynamically (that is, per-Matlab session, with no required Matlab state), as follows:</p> <pre><code>javaaddpath('c:\full\path\to\compiledjarfile.jar') </code></pre> <p>You can also add these statically by editing the classpath.txt file. For more information use <code>docsearch java class path</code>.</p></li> <li><p>Precompiled *.class files.</p> <p>These are similar to *.jar file, except you need to add the directory containing the class file, rather than the class files themselves. For example:</p> <pre><code>javaaddpath('c:\full\path\to\directory\containing\class\files\') %NOT THIS: javaaddpath('c:\full\path\to\directory\containing\class\files\classname.class') </code></pre></li> </ol>
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    1. COThanks a lot. Your guidance really helped!
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    2. COclass not found exception, although I have added the path
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