public String largestNumber1(int[] nums) {
		String[] numbers = new String[nums.length];
		for(int i = 0; i < nums.length; i++) {
			numbers[i] = String.valueOf(nums[i]);
		}
		Arrays.sort(numbers, new Comparator<String>() {
			public int compare(String o1, String o2) {
				String s1 = o2 + o1;
				String s2 = o1 + o2;
				for(int i=0; i<s1.length(); i++) {
					if(s1.charAt(i) > s2.charAt(i))
						return 1;
					if(s1.charAt(i) < s2.charAt(i))
						return -1;
				}
				return 0;
			}
		});
		StringBuilder sb = new StringBuilder();
		for(String s : numbers)
			sb.append(s);
		String res = sb.toString();
		return res.charAt(0) == '0' ? "0" : res;
	}