Comparable & Comparator

comparable & comparator之区别联系：

http://www.digizol.com/2008/07/java-sorting-comparator-vs-comparable.html

 

public interface Comparable<T> {
 public int compareTo(T o); 
}

 

public interface Comparator<T> {
    public int compareTo(T o);
    public boolean equals(Ojbect o);
}