Q.4: How to reverse each word in a given string?

 Ans.: The user will input a sentence and we need to reverse each word individually without changing its position in the sentence.

• input: Welcome to Csharp corner, output: emocleW ot prahsC renroc

internal static void ReverseWords(string str)

{

StringBuilder output = new StringBuilder();

List<char> charlist = new List<char>();

for (int i = 0; i < str.Length; i++)

{

if (str[i] == ' ' || i == str.Length - 1)

{

if (i == str.Length - 1)

charlist.Add(str[i]);

for (int j = charlist.Count - 1; j >= 0; j--)

output.Append(charlist[j]);

output.Append(' ');

charlist = new List<char>();

}

else

charlist.Add(str[i]);

}

Console.WriteLine(output.ToString());

}