基于JDK 5.0的collection类的使用总结

List list=new List;

public interface Collection
{
boolean add(E element);
Iterator iterator();
. . .
}
public interface Iterator
{
E next();
boolean hasNext();
void remove();
}

Collection c = . . .;
Iterator iter = c.iterator();
while (iter.hasNext())
{
String element = iter.next();
do something with element
}

for (String element : c)
{
do something with element
}

Comparator itemComparator = new
Comparator()
{
public int compare(Item a, Item b)
{
return a.partNumber - b.partNumber;
}
});

Collections.sort(items, itemComparator);
Collections.sort(items, Collections.reverseOrder(itemComparator))；

i = Collections.binarySearch(c, element);
i = Collections.binarySearch(c, element, comparator);

ArrayList
An indexed sequence that grows and shrinks dynamically

LinkedList
An ordered sequence that allows efficient insertions and removal at any location