截取字符串Java

public class Test {
    public static void main(String args[]) {

           int temp=0;
           ArrayList List = new ArrayList();
           String s1 = "abc,de.f,gAB,CDE,FGH";
  
           String str1[] = s1.split("[,\\.]");

            for (int i = 0; i < str1.length; i++) {

                  System.out.println(str1[i]);
                  List.Add(str1[i]);
             }
          List.Sort();
          System.out.println( List.Sort());
}