xcomparator.java

使用MVC 的模型画 BAR CHART, 便于理解MVC的内涵.

import java.util.Comparator;

/*
 * Created on 15/09/2007
 */

public class XComparator implements Comparator
{
    
    public int compare(Object o1, Object o2)
    {
        XYData
            entry1 = (XYData)o1,
            entry2 = (XYData)o2;
        
        String
            v1 = entry1.getX(),
            v2 = entry2.getX();
        
        if(v1.compareTo(v2)<0)
        {
            return -1;
        }
        else if(v1.compareTo(v2)>0)
        {
            return 1;
        }
        else
        {
            return 0;
        }
    }//End compare method
    
}//End YComparator Class Definition