Array to List, List to Array, Sort List, anonymous class

public static void p( ) {        
    String[] s = new String[4];
    s[0] = "C";
    s[1] = "NTM01";
    s[2] = "NNTM01";
    s[3] = "A";
         
    //Array to List
    List sl = Arrays.asList(s);
    //anonymous class  
    Collections.sort(sl, new Comparator() {
        //sort list by string length desceding
        // --> acdx, asd,cc,cf,s
        public int compare(Object o1, Object o2) {
             String s1 = (String)o1;
             String s2 = (String)o2;
             return (s2.length() - s1.length());
        }
    });
        
    //List to Array
    String[] s2 = (String[]) sl.toArray(new String[0]);
    System.out.println(s2);
}