How to access a Set within a Set
<p>I have a class State which has a Set of Arcs. (Arc is another class). Now the Lexicon class has Set of States. How do I select the State where a particular Arc is present.</p>

<pre><code>public class State {
private static long count = 0;
private long StateNo;
private Set&lt;Arc&gt; arcs;
}

public class Arc {
private char charecter;
private State destState;
private Set&lt;String&gt; letters;
}
</code></pre>

<p>These are the classes I am refferring to.</p>
