JAVA HashMap의 Key값 출력하기

import java.util.HashMap;

import java.util.Iterator;

import java.util.Set;




public class Test {

 public static void main(String[] args) {

              HashMap map = new HashMap();

  

              map.put("key01", "value01");

              map.put("key02", "value02");

              map.put("key03", "value03");

              map.put("key04", "value04");

              map.put("key05", "value05");

  

            




  Set key = map.keySet();

  

  for (Iterator iterator = key.iterator(); iterator.hasNext();) {

                   String keyName = (String) iterator.next();

                   String valueName = (String) map.get(keyName);

   

                   System.out.println(keyName +" = " +valueName);

  }






}

}