An object that implements the Enumeration interface generates a
series of elements, one at a time. Successive calls to the
nextElement method return successive elements of the
series.
For example, to print all elements of a Vector v:
for (Enumeration e = v.elements(); e.hasMoreElements();)
System.out.println(e.nextElement());
Methods are provided to enumerate through the elements of a
vector, the keys of a hashtable, and the values in a hashtable.
Enumerations are also used to specify the input streams to a
SequenceInputStream.
Api Note
The functionality of this interface is duplicated by the Iterator
interface. In addition, Iterator adds an optional remove operation,
and has shorter method names. New implementations should consider using
Iterator in preference to Enumeration. It is possible to
adapt an Enumeration to an Iterator by using the
#asIterator method.
An object that implements the Enumeration interface generates a series of elements, one at a time. Successive calls to the
nextElementmethod return successive elements of the series.For example, to print all elements of a
Vectorv:Methods are provided to enumerate through the elements of a vector, the keys of a hashtable, and the values in a hashtable. Enumerations are also used to specify the input streams to a
SequenceInputStream.Api Note
The functionality of this interface is duplicated by the Iterator interface. In addition,
Iteratoradds an optional remove operation, and has shorter method names. New implementations should consider usingIteratorin preference toEnumeration. It is possible to adapt anEnumerationto anIteratorby using the #asIterator method.See
Author
Lee Boynton
Since
1.0