最大整数排列

问题描述：设有n个正整数，将他们连接成一排，组成一个最大的多位整数

package oj;
import java.math.BigInteger;
import java.util.Arrays;
import java.util.Collections;
import java.util.Scanner;
public class MaxArray{
    
    
//    public static Number[] result;
    public static void main(String[] args) {
    
    
        Scanner input = new Scanner(System.in);
        String[] str;
        String s = input.nextLine();
        str = s.split(" ");
        if (s!=null){
    
    
            int len = str.length;
            Arrays.sort(str, Collections.reverseOrder());
            StringBuffer stringBuffer = new StringBuffer("");
            for (int i = 0; i < len; i++) {
    
    
                stringBuffer.append(str[i].toString());
            }
            BigInteger n = new BigInteger(stringBuffer.toString());
            System.out.println(n);
        }
    }
}