Possible Duplicates:
difference between compare() and compareTo()
Java: What is the difference between implementing Comparable and Comparator?
Comparable和Comparator之间的关键区别是什么.
在什么情况下,哪一个比另一个更受欢迎?
谢谢
Updated - GOOD LINK WITH EXAMPLE!!个
http://www.digizol.com/2008/07/java-sorting-comparator-vs-comparable.html个