treeMap.put("firstKey", "firstValue");
treeMap.put("secondKey", "secondValue");
treeMap.put("thirdKey", "thirdValue");
Object firstKey = treeMap.firstKey();
SortedMap subMap = ((SortedMap)treeMap).subMap(firstKey, firstKey);
Iterator iter = subMap.values().iterator();
}
/**
* Sets up the fixture, for example, open a network connection. This method
* is called before a test is executed.