class Solution {public String largestNumber(int[] nums) {int n = nums.length;String numsToWord[] = new String[n];for(int i=0;i<n;i++){numsToWord[i] = String.valueOf(nums[i]);}//[233，23333]排序后变为[23333，233]Arrays.sort(numsToWord,(a,b)->{//这里比较的是字典序return (b+a).compareTo(a+b);});StringBuilder sb = new StringBuilder();for(int i=0;i<n;i++){sb.append(numsToWord[i]);}String res=sb.toString();return res.charAt(0)=='0'?"0":res;}
}