Java ,Sharpener,Failed student At End.

public class Main{
public static void main(String[] args) {
int[] nums = {1, -3, 5, -7, 9, 8, -2, 4, 0};
int[] b = new int[nums.length];
int j = 0;

   for (int num : nums) {
       if (num >= 0) {
           b[j] = num;
           j++;
       }
   }

   for (int num : nums) {

       if (num < 0) {
           b[j] = num;
           j++;
       }
   }
   for (int i = 0; i < b.length; i++) {
       nums[i] = b[i];

       System.out.print(" " +b[i]);


   }

}
}