HashMap to ArrayList example

package com.concretepage;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map.Entry;
import java.util.Set;

public class HashMapArrayListAgain {

public static void main(String[] args) {
    HashMap<String, String> map = new HashMap<String, String>();
map.put("1", "1");
map.put("2", "2");
map.put("3", "3");
map.put("4", "4");
//Getting the Set of entries
Set<Entry<String, String>> entrySet = map.entrySet();
//Creating an ArrayList Of Entry objects
ArrayList<Entry<String, String>> listOfEntry = new ArrayList<Entry<String,String>>(entrySet);


HashMap<String, String> map1 = new HashMap<String, String>();
map1.put("1", "1");
map1.put("2", "2");
map1.put("3", "3");
map1.put("4", "4");
//Getting the Set of entries
Set<Entry<String, String>> entrySet1 = map.entrySet();
//Creating an ArrayList Of Entry objects
ArrayList<Entry<String, String>> listOfEntry1 = new ArrayList<Entry<String,String>>(entrySet);
Iterator itr = listOfEntry1.iterator();
while(itr.hasNext()) {
Object ref = itr.next();
    System.out.println(ref);


}

}

}