Enumeration: nextElement()
import java.util.Date;
import java.util.Enumeration;
import java.util.Hashtable;
public class Main{
public static void main(String[] args) {
Hashtable h = new Hashtable(20);
System.out.println(h.put("one", new Integer(1)));
System.out.println(h.put("name", "A"));
System.out.println(h.put("date", new Date()));
System.out.println(h.put("one", new Integer(4)));
Enumeration e = h.keys();
while (e.hasMoreElements())
System.out.println(e.nextElement());
e = h.elements();
while (e.hasMoreElements())
System.out.println(e.nextElement());
}
}
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