스트링 리스트에서 스트링 찾기(find) with C#

[파일명:  TestStringFindInList.cs]------------------------------------------------
using System;
using System.Collections;
using System.Collections.Generic;

namespace MyTestApplication1 {

    class TestStringFindInList {

        public static void Main(String[] args) {
            List<string> words = new List<string>(new String[] { "하나", "둘", "셋", "넷", "다섯", "여섯" });
            int where;

            Console.Write("list: ");
            PrintArray(words);
            where = Find(words, "셋");
            if (where > 0) {
                Console.Write("발견!  ");
                Console.WriteLine("Next word of 셋 in list: " + words[where+1]);
            }

            Console.WriteLine("Sorting...");
            words.Sort();

            Console.Write("list: ");
            PrintArray(words);
            where = Find(words, "셋");
            if (where > 0) {
                Console.Write("발견!  ");
                Console.WriteLine("Next word of 셋 in list: " + words[where+1]);
            }
        }

        public static int Find(List<string> arr, String s) {
            for (int i = 0; i < arr.Count; i++) {
                if (arr[i].IndexOf(s) >= 0)
                    return i;
            }
            return -1;
        }

        public static void PrintArray(List<string> arr) {
            Console.Write("[");
            for (int i = 0; i < arr.Count - 1; i++) {
                Console.Write("{0}, ", arr[i]);
            }
            if (arr.Count > 0)
                Console.Write("{0}", arr[arr.Count - 1]);
            Console.WriteLine("]");
        }
    }
}
------------------------------------------------


컴파일> csc testStringFindInList.cs

실행> TestStringFindInList
list: [하나, 둘, 셋, 넷, 다섯, 여섯]
발견!  Next word of 셋 in list: 넷
Sorting...
list: [넷, 다섯, 둘, 셋, 여섯, 하나]
발견!  Next word of 셋 in list: 여섯