Stack<Character> stack1 = new Stack();
        Stack<Character> stack2 = new Stack();
        
        for(char ch: s.toCharArray()){
            if(!stack1.isEmpty() && ch == '#')
                stack1.pop();
            else if(ch != '#')
                stack1.push(ch);
        }
        
        for(char ch: t.toCharArray()){
            if(!stack2.isEmpty() && ch == '#')
                stack2.pop();
            else if(ch != '#')
                stack2.push(ch);
        }

        return String.valueOf(stack1).equals(String.valueOf(stack2));