자바 컬렉션

beginnersbook.com/java-collections-tutorials/

Java Collections Framework Tutorials

 

• Collection
  •  Set
    • HashSet
      • hs.add();
      • hs.contains();
        • HashSet + String
          • for(char s: str.toCharArray())
    • LinkedHashSet
    • SortedSet
      • TreeSet
  • List
    • ArrayList
    • Vector
    • LinkedList
  • Queue
    • LinkedList
    • PriorityQueue
• Object
  • Arrays
  • Collections
• Map
  • Hashtable: HashTable is similar to HashMap except it is synchronized.
  • LinkedHashMap
  • HashMap
  • SortedMap
    • TreeMap

 

 

 

 

beginnersbook.com/2014/06/difference-between-hashmap-and-hashtable/

Difference between HashMap and Hashtable