Test case failing in majority element problem

Hi,
I have written the complete code but some of mine test cases are failing. Not able to find the reason. Kindly help.

import java.util.;
import java.lang.
;
public class Main {
public static void main (String args[]) {

    Scanner sc=new Scanner(System.in);
    int n1=sc.nextInt();
    int arr[]=new int[n1];
    if(n1<=0 ){
    System.out.println("No majority elements");
        return;}
    for(int i=0;i<n1;i++)
        arr[i]=sc.nextInt();
    int ele1=0,ele2=0,c1=0,c2=0;
    for(int n : arr)
    {
        int ab=Math.abs(n);
        if(ele1==ab)
            c1++;
        else if(ele2==ab)
            c2++;
        else if(c1==0)
        {
            ele1=ab;
            c1=1;
        }
        else if(c2==0)
        {
            ele2=ab;
            c2=1;
        }
        else{
            c1--;
            c2--;
        }
    }
    int cnt1=0,cnt2=0;
    for(int n:arr){
        int ab=Math.abs(n);
        if(ele1==ab)
            cnt1++;
        else if(ele2==ab)
            cnt2++;
    }
    ArrayList<Integer> al=new ArrayList<>();
    if(cnt1>n1/3)
        al.add(ele1);
    if(cnt2>n1/3)
        al.add(ele2);
    if(al.size()==0){
        System.out.println("No majority elements");
        return;
        
        }
       // System.out.print(al);
    for(int x:al)
    {
        System.out.print(x+" ");
    }

}

}

The way of writing of those 2 packages you are importing are wrong
Here is correct one:
import java.util.;
import java.lang.
;