Question

How to reverse a word in a string with C#

Answer 1

using System;

class Program
{
    static void ReverseWord(ref string str, string word) {
        int pos = str.IndexOf(word);
        if (pos != -1) {
            char[] wordArray = word.ToCharArray();
            Array.Reverse(wordArray);
            string reversed = new string(wordArray);

            str = str.Substring(0, pos) + reversed + str.Substring(pos + word.Length);
        }
    }

    static void Main()
    {
        string str = "C++ C Java Python PHP C#";
        string word = "Java";

        ReverseWord(ref str, word);

        Console.WriteLine(str);
    }
}


/*
run:

C++ C avaJ Python PHP C#

*/

 

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