comparator.java

真的很麻烦也

public class Comparator
{
	public boolean isComparable(Object o)
	{
		return true;
	}
	public boolean isLessThan(Object a, Object b)
	//the value 0 if the argument string is equal to this string; 
	//a value less than 0 if this string is lexicographically less than the string argument; 
	//and a value greater than 0 if this string is lexicographically greater than the string argument.

	{
		return (a.toString().compareTo(b.toString()))<0;
	}
	public boolean isGreaterThan(Object a, Object b)
	{
		return (a.toString().compareTo(b.toString()))>0;
	}
}