Java String Tokens

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    public static void main(String[] args) { Scanner scan = new Scanner(System.in); String s = scan.nextLine(); // Write your code here.

        String ss = s.trim();
    
        String [] ourwords=ss.split("[  !,?._'@]+");
    
        int num=ourwords.length;
        if(ss.equals("")){
            num=0;
        }
        System.out.println(num);
        for (String word : ourwords){
            System.out.println(word);
    
        }