Map iterator 예제

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

 

/*
 * Copyright (c) 1999-2005 (주)ACTSoft. All rights reserved.
 */

 

/**
 * @author Hong ByungChan
 *
 */
public class MapSample {

 

 /**
  * 
  */
 public MapSample() {
  super();
 }

 

 /**
  * @param args
  */
 public static void main(String[] args) {
  Map map = new HashMap();
     map.put("key1", "value1");
     map.put("key2", "value2");
     map.put("key3", "value3");
     map.put(null, null);

 

     Set set = map.keySet();

 

     Iterator iter = set.iterator();

 

     while (iter.hasNext()) {
       System.out.println(iter.next());
     }

 

 }

 

}

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