Getting an enumeration over the specified collection. This provides interoperability with legacy APIs that require an enumeration as input.

package collection.demos;


import java.util.ArrayList;

import java.util.Collections;

import java.util.Enumeration;


public class GettingEnumerationOfCollection {



    public static void main(String[] args) {

        ArrayList<String> list = new ArrayList<String>();

        list.add("A");

        list.add("B");

        list.add("C");

        list.add("D");

        Enumeration<String> e=Collections.enumeration(list);

        while(e.hasMoreElements()){

            System.out.println(e.nextElement());

        }

    }

}

/*

OUTPUT : 

A

B

C

D

 */