Absolute Path Coding Problem with Solution

Given an absolute pathname that may have . or .. as part of it, return the shortest standardized path.

For example, given "/usr/bin/../bin/./scripts/../", return "/usr/bin/".

import java.util.*;
class GFG {
    static String getAbsolutePath(String s)
    {
        String path[]=s.split("/");
        ArrayList<String>al=new ArrayList<>();
        for(int i=0;i<path.length;i++)
        {
            if(path[i].equals("."))
              continue;
            else if(path[i].equals(".."))
              {
                  if(al.size()>0)
                   al.remove(al.size()-1);
              }
              else
              al.add("/"+path[i]);
        }
        if(al.size()>0)
          al.add("/");
        s="";
       for(int i=1;i<al.size();i++)
         s+=al.get(i);
       return s;        
    }
    public static void main (String[] args) {
            Scanner sc=new Scanner(System.in);
            String s=sc.next();
            System.out.println(getAbsolutePath(s));
    }
}