MAP 활용

keySet을 이용

Set set = hmap.keySet();
Iterator iterator = set.iterator();
while (iterator.hasNext()) {
   key = (String)iterator.next();
   value = hmap.get(key);
   System.out.println("key : "+key+", value : "+value);
}

entrySet을 이용

Set set = hmap.entrySet()
Iterator iterator = set.iterator();
while (iterator.hasNext()) {
   Map.Entry entry = (Map.Entry)iterator.next();
   System.out.println("key : "+entry.getKey()+", value : "+entry.getValue());
}