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java.lang.Object
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+--java.util.Dictionary
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+--java.util.Hashtable
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+--OrderedHashtable
The class `OrderedHashtable' is a subclass of Hashtable that records the order of keys (by overriding the methods put and remove), and adds a method keyListIterator to return an iterator over the keys in the order in which they were put.
| Inner classes inherited from class java.util.Map |
java.util.Map.Entry |
| Constructor Summary | |
OrderedHashtable()
Constructs an empty ordered hashtable. |
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| Method Summary | |
java.util.ListIterator |
keyListIterator()
Returns an iterator over the keys in this hashtable, in the order that they were put. |
java.lang.Object |
put(java.lang.Object key,
java.lang.Object value)
Maps the specified key to the specified value in this hashtable. |
java.lang.Object |
remove(java.lang.Object key)
Removes the key (and its corresponding value) from this hashtable. |
| Methods inherited from class java.util.Hashtable |
clear, clone, contains, containsKey, containsValue, elements, entrySet, equals, get, hashCode, isEmpty, keys, keySet, putAll, rehash, size, toString, values |
| Methods inherited from class java.lang.Object |
finalize, getClass, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
public OrderedHashtable()
| Method Detail |
public java.lang.Object put(java.lang.Object key,
java.lang.Object value)
put in class java.util.Hashtablekey - the hashtable key.value - the value.public java.lang.Object remove(java.lang.Object key)
remove in class java.util.Hashtablekey - the key that needs to be removed.public java.util.ListIterator keyListIterator()
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