Use is subject to License Terms. Your use of this web site or any of its content or software indicates your agreement to be bound by these License Terms.

Copyright © 2006 Sun Microsystems, Inc. All rights reserved.

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java.util
Interface 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.

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

Method Summary
 boolean hasMoreElements()
          Tests if this enumeration contains more elements.
 Object nextElement()
          Returns the next element of this enumeration if this enumeration object has at least one more element to provide.
 

Method Detail

hasMoreElements

public boolean hasMoreElements()
Tests if this enumeration contains more elements.
Returns:
true if and only if this enumeration object contains at least one more element to provide; false otherwise.

nextElement

public Object nextElement()
Returns the next element of this enumeration if this enumeration object has at least one more element to provide.
Returns:
the next element of this enumeration.
Throws:
NoSuchElementException - if no more elements exist.

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Copyright © 2006 Sun Microsystems, Inc. All rights reserved. Use is subject to License Terms. Your use of this web site or any of its content or software indicates your agreement to be bound by these License Terms.

For more information, please consult the JSR 37 specification.