import java.util.Arrays; //数组从小到大排序 public class Demo01 { public static void main(String[] args) { // TODO Auto-generated method stub int[] arr={99,1,5,44,66,44,33,9}; Arrays.sort(arr); for (int i = 0; i < arr.length; i++) { System.out.println(arr[i]+""); } } }