java 中List按照date排序的实现

private Date Date; 
//有get/set方法；

public Date getDate() { 
  return Date; 
} 
 
public void setDate(Date lcDate) { 
  this.Date = lcDate; 
} 

Collections.sort(resultList, new Comparator<Leavecalendar>() { 
 
   @Override 
   public int compare(Leavecalendar o1, Leavecalendar o2) { 
    int flag = o1.getDate().compareTo(o2.getDate()); 
    return flag; 
   } 
  });