Get Enumeration from collection, create list from Enumeration

ReturnMethodSummary
static<T> Enumeration<T> enumeration(Collection<T> c) Returns an enumeration over the specified collection.
static<T> ArrayList<T> list(Enumeration<T> e) Returns an array list containing the elements returned by the specified enumeration in the order they are returned by the enumeration.

  import java.util.Collection;
import java.util.Collections;
import java.util.Enumeration;
import java.util.Vector;

public class Main {
  public static void main(String args[]) throws Exception {
    Vector<String> v = new Vector<String>();
    v.add("a");
    v.add("b");
    v.add("java2s.com");

    Collection<String> col = v;
    Enumeration<String> e = Collections.enumeration(col);
    
    for (; e.hasMoreElements();) {
      Object o = e.nextElement();
      System.out.println(o);
    }
  }
}

The output:


a
b
java2s.com

  import java.util.ArrayList;
import java.util.Collections;
import java.util.Enumeration;
import java.util.Vector;

public class Main {
  public static void main(String[] args) {
    Vector<String> v = new Vector<String>();
    v.add("A");
    v.add("B");
    v.add("D");
    v.add("E");
    v.add("java2s.com");

    System.out.println(v);
    Enumeration<String> e = v.elements();

    ArrayList<String> aList = Collections.list(e);
    System.out.println(aList);
  }
}

The output:


[A, B, D, E, java2s.com]
[A, B, D, E, java2s.com]
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