face in java.util">hashCode</A>, <A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/util/Set.html?is-external=true#isEmpty()" title="class or interface in java.util">isEmpty</A>, <A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/util/Set.html?is-external=true#iterator()" title="class or interface in java.util">iterator</A>, <A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/util/Set.html?is-external=true#remove(java.lang.Object)" title="class or interface in java.util">r