List<?>[] lsa = new List<?>[10]; // OK, array of unbounded wildcard type.
Object o = lsa;
Object[] oa = (Object[]) o;
List<Integer> li = new ArrayList<Integer>();
li.add(new Integer(3));
oa[1] = li; // Correct.
Integer i = (Integer) lsa[1].get(0); // OK
Log.i("lgq","sssssssss==="+i);//===3

 数组排序

//        Arrays.sort(fenlist);//小到大for (int i = 0; i < fenlist.length - 1; i++) {//大到小for (int j = i + 1; j < fenlist.length; j++) {if (fenlist[i] < fenlist[j]) {int temp = 0;temp = fenlist[i];fenlist[i] = fenlist[j];fenlist[j] = temp;} elsecontinue;}}

排序后，对象集合排序

List<Player> endlist = new ArrayList<>();
for (int j = 0; j < fenlist.length; j++) {for (int i = 0; i < yanlist.length; i++) {if (yanlist[i] == fenlist[j]) {endlist.add(j, room.getPlayers().get(i));}}
}