Sort Vietnamese

Source: https://congdongjava.com/forum/threads/s%E1%BA%AFp-x%E1%BA%BFp-danh-s%C3%A1ch-theo-b%E1%BA%A3ng-ch%E1%BB%AF-c%C3%A1i-ti%E1%BA%BFng-vi%E1%BB%87t.21065/

Thanks to Joe member

import java.text.RuleBasedCollator;
import java.util.Arrays;
import java.util.Collections;
import java.util.Vector;

/** * Created by nhchon on 2/6/2018 4:12 PM. */

public class Viet {
    //More about RuleBasedCollator see https://docs.oracle.com

    //javase/tutorial/i18n/text/rule.html    

    public static void main(String s[]) throws Exception {
    // copy from JackV        

    Vector<String> list = new Vector<String>(

    Arrays.asList(new String[]{"Duy", "Dũng", "Trinh", "Lan", "Đạt", "1", "a"}));
        final String rules = "<0<1<2<3<4<5<6<7<8<9<@"+
                "<a,A<á<à<ả<ã<ạ<ă<ắ<ằ<ẳ<ẵ<ặ<â<ấ<ầ<ẩ<ẫ<ậ"+
                "<b<c<d,D<đ,Đ<e<é<è<ẻ<ẽ<ẹ<ê<ế<ề<ể<ễ<ệ<f<g<h"+
                "<i<í<ì<ỉ<ĩ<ị<j<k<l<m<n<o<ó<ò<ỏ<õ<ọ<ô<ố<ồ<ỗ"+
                "<ộ<ơ<ớ<ờ<ở<ỡ<ợ<p<q<r<s<t"+
                "<u<ú<ù<ủ<ũ<ụ<ư<ứ<ừ<ử<ữ"+
                "<v<w<x<y<ý<ỳ<ỷ<ỹ<ỵ<z";
        RuleBasedCollator ru = new RuleBasedCollator(rules);
        Collections.sort(list, ru);
        for (int i = 0, l = list.size(); i < l; i++)
            System.out.println(list.elementAt(i));
    }
}

Result:

C:\Java\jdk1.8.0_112\bin\java 

1
a
Duy
Dũng
Đạt
Lan
Trinh