学习java容器

参考资料 http://wenku.baidu.com/view/7578858dcc22bcd126ff0c91.html

API http://developer.android.com/reference/java/util/Collection.html

Summary APIs already read:

Collection

Comparator

Deque

Interator

List

ListInterator

Map: -(v)get(k)  -()put(<k,v>)  -(set)keySet() -(Collection)values() -()remove(k)

set：does not allow duplicate element.

Quene:Queue implementationsgenerally do not allow insertionof null elements,

 Throws exceptionReturns special valueInsertadd(e)offer(e)Removeremove()poll()Examineelement()peek()

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ArrayList:can add null。动态数组

All optional operations including adding, removing, and replacingelements are supported.

LinkedList：双链表

Vector:(具有同步机制，非常类似于ArrayList)

HashSet:可以加入null，