import java.util.Collections;

import java.util.LinkedList;

import java.util.List;

public class ListSort {

public static void main(String[] args) {

List list = new LinkedList();

for ( int i = 0 ; i < 9 ; i ++ ) {

list.add( " num " + i);

}

Collections.sort(list); // 顺序排列

System.out.println(list);

Collections.reverse(list); // 倒序排列

System.out.println(list);

}

}

原文：https://www.cnblogs.com/hsjava1/p/8794256.html