public static String PrintMinNumber(int [] numbers) { int len=numbers.length; StringBuilder sb=new StringBuilder(); String[] s=new String[len]; for (int i = 0; i < len; i++) { s[i]=String.valueOf(numbers[i]); } Arrays.sort(s,(s1,s2)->(s2+s1).compareTo(s1+s2)); for (int i = 0; i < len; i++) { sb.append(s[i]); } return sb.toString(); }算法题