输入N个正整数 然后从大到小排序 然后求出最小和最大的整数的阶乘

package Comparetor;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.ObjectInput;
import java.io.ObjectOutputStream;
import java.util.ArrayList;
import java.util.List;

public class CoMpare {
?// 输入N个正整数 然后从大到小排序 然后求出最小和最大的整数的阶乘
?public static void main(String[] args) {
??BufferedReader br = null;
??BufferedWriter bw = null;
??/*
?? * ObjectInput ois = null;//用来socket ObjectOutputStream oos =
?? * null;/用来socket
?? */
??br = new BufferedReader(new InputStreamReader(System.in));// 在Reader的构造的参数赢要reader这个类型的
?????????????????// 那么inputStreamReader就是BufferedReader里面的
??System.out.println("input some char");
??String[] str = null;
??try {
???str = (br.readLine()).split(" ");
??} catch (IOException e) {
???e.printStackTrace();
??}
??List lists = new ArrayList();
??for (String s : str) {
???lists.add(new Integer(Integer.parseInt(s)));
??}
??System.out.println(lists.toString());
??// 排序
??Integer temp = null;
??int maxsize = 1;
??for (int i = 1; i < lists.size(); i++) {
???temp = (Integer) lists.remove(i);
???if (temp.intValue() >= ((Integer) lists.get(maxsize - 1))
?????.intValue()) {
????lists.add(maxsize, temp);
????maxsize++;
???} else {
????for (int j = 0; j < maxsize; j++) {
?????if (temp.intValue() <= ((Integer) lists.get(j)).intValue()) {
??????lists.add(j, temp);
??????maxsize++;
??????break;
?????}
????}
???}
??}
??System.out.println("after");
???? System.out.println(lists.toString());
???? System.out.println("min="+lists.get(0));
???? System.out.println("max="+lists.get(lists.size()-1));
???? //min的阶乘 //max的阶乘
????? int min = ((Integer)lists.get(0)).intValue();
????? int max = ((Integer)lists.get(lists.size()-1)).intValue();
????? int sum = 1 ;
????? if(min == 1 || min==0){
??? ?? System.out.println("最小阶乘为1");
????? }else{
??? ?? for(int i = 1 ; i<=min ; i++){
??? ??? sum*=i;
??? ?? }
??? ?? System.out.println("最小数的阶乘为"+sum);
????? }
?
?if(max== 1 || max==0){
??? ?? System.out.println("最大阶乘为1");
????? }else{
??? ?? for(int i = 1 ; i<max ; i++){
??? ??? sum*=i;
??? ?? }
??? ??? System.out.println("最da数的阶乘为"+sum);
????? }
?}
}