在列表中下移对象

/* 
*来 自
 n o w    j a v a  . c o m
*/

//package com.nowjava;

import java.util.List;


public class Main {

    public static void main(String[] argv) throws Exception {

        List list = java.util.Arrays.asList("asdf", "nowjava.com");

        Object o = "nowjava.com";

        System.out.println(moveDown(list, o));

    }


    @SuppressWarnings("unchecked")

    public static boolean moveDown(List list, Object o) {

        int index = list.indexOf(o);

        if (index >= 0) {

            try {/** 时代Java - N o w  J a v a . c o m 提 供 **/

                Object temp = list.set(index + 1, o);

                list.set(index, temp);

                return true;