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Interface java.util.Enumeration
- public interface Enumeration
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.
- See Also:
- SequenceInputStream, nextElement, Hashtable, elements, keys, Vector, elements
-
hasMoreElements()
- Tests if this enumeration contains more elements.
-
nextElement()
- Returns the next element of this enumeration.
hasMoreElements
public abstract boolean hasMoreElements()
- Tests if this enumeration contains more elements.
- Returns:
-
true if this enumeration contains more elements;
false otherwise.
nextElement
public abstract Object nextElement()
- Returns the next element of this enumeration.
- Returns:
- the next element of this enumeration.
- Throws: NoSuchElementException
- if no more elements exist.
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