Java Collections sort using String.CASE_INSENSITIVE_ORDER

import java.util.Arrays;
import java.util.Collections;
import java.util.List;

public class Main {
  public static void main(String[] argv) throws Exception {
    String[] strArray = new String[] { "CSS", "css", "CSS", 
        "HTML","demo2s.com","Demo2s.com" };
    List<String> list = Arrays.asList(strArray);
    System.out.println(list);//ww  w.  java 2  s . c  om
    
    Collections.sort(list);
    System.out.println(list);

    Collections.sort(list, String.CASE_INSENSITIVE_ORDER);
    System.out.println(list);

    Collections.sort(list, Collections.reverseOrder());
    System.out.println(list);

    Collections.sort(list, String.CASE_INSENSITIVE_ORDER);
    System.out.println(list);
    
  }
}