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11.1 集合框架概述
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Collection的三个子接口：List,Set和Queue。
此外还有一个Map接口。
11.2 Collection接口
11.3 List和ArrayList
11.4 用Iterator和for迭代集合
11.5 Set和HashSet
11.6 Queue和LinkedList
11.7 集合转换
11.8 Map和HashMap
java.util Collection
List & ArrayList
public boolean add(java.lang.Object element)
public void add (int index, java.lang.Object element)
public java.lang.Obeject(int index,java.lang.Object element)
public java.lang.Object(int index)
List myList = new ArrayList();//初始容量为10个元素
List members = Arrays.asList("a","b","c");
public int indexOf(java.lang.Object obj);
Iterator iterator = myList.iterator();
while(iterator.hasNext()){
String element = (String)iterator.next();
System.out.println(element);
}
for(Object object : myList){
System.out.println(object);
}