Java example - HashMap traversal

The following example demonstrates how to use the iterator() method of the Collection class to traverse the collection:

/*
 author by w3cschool.cc
 Main.java
 */import java.util.*;import java.util.*;public class Main {
   public static void main(String[] args) {
      HashMap< String, String> hMap = 
      new HashMap< String, String>();
      hMap.put("1", "1st");
      hMap.put("2", "2nd");
      hMap.put("3", "3rd");
      Collection cl = hMap.values();
      Iterator itr = cl.iterator();
      while (itr.hasNext()) {
         System.out.println(itr.next());
     }
   }}

The output result of running the above code is:

3rd
2nd
1st

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