class Deepak{
Date createdDate;
public Deepak(Date createdDate){
this.createdDate=createdDate;
}
}
比较器,然后按此代码对它们进行排序:
Collections.sort(yourArraylist,yourComparator);
//使用下面的链接找出如何制作比较器。https://docs.oracle.com/javase/8/docs/api/java/util/Comparator.html