package nowcoder; import java.util.Arrays; public class solution45 { public String PrintMinNumber(int [] numbers) { if(numbers==null||numbers.length==0) { return ""; } int n = numbers.length; String[] num = new String[n]; for(int i=0;i(s1+s2).compareTo(s2+s1)); StringBuilder ret = new StringBuilder(); for(String str:num) { ret.append(str); } return ret.toString(); } }