/* * Element.java * * Created on 2006年4月17日, 下午2:15 * * To change this template, choose Tools | Options and locate the template under * the Source Creation and Management node. Right-click the template and choose * Open. You can then make changes to the template in the Source Editor. */package test;import java.lang.*;/** * * @author michael */   public   class Element implements Comparable{        int id;        double d;        public Element(int idd,double dd){            id=idd;            d=dd;        }        public int compareTo(Object x){            double xd=((Element)x).d;            if (d<xd) return -1;            if (d==xd) return 0;            return 1;        }        public boolean equals(Object x){            return d==((Element)x).d;        }         }