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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.

Since:
JDK1.0
See Also:
SequenceInputStream, nextElement, Hashtable, elements, keys, Vector, elements

Method Index

hasMoreElements()
Tests if this enumeration contains more elements.
nextElement()
Returns the next element of this enumeration.

Methods

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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