public class demo {public static void main(String[] args) {//定义一个字符串sString s = "212 215 64 31 654 516";//定义一个字符串数组，接收字符串s以空格为划分的字符串String[] arr = s.split(" ");int[] arrInt = new int[arr.length];//将字符串数组中数字存储到int类型的数组中for (int i = 0; i < arr.length; i++) {arrInt[i] = Integer.parseInt(arr[i]);}//对int数组进行排序Arrays.sort(arrInt);StringBuilder sb = new StringBuilder();sb.append("[");//排序后的int数组中的元素进行拼接for (int i = 0; i < arr.length; i++){if(i == arr.length - 1){sb.append(arrInt[i]+"]");}else {sb.append(arrInt[i] + ",");}}String s1 = sb.toString();System.out.println(s1);}
}