Code to print the words in reverse in given string

static void Main(string[] args)
{
string text = "This is Mr. Ponna"; //Input string is "This is Mr. Ponna"
Console.WriteLine(PrintWordsInReverse(text)); //output: "sihT si .rM annoP"
}

// This method will print the words in reverse in given string
static string PrintWordsInReverse(string str)
{
string revWord = string.Empty;
string finalSentance = string.Empty;
for (int i = 0; i < str.Length; i++)
{
if (str[i] != ' ')
{
revWord = str[i] + revWord;
}
else
{
revWord = revWord + ' ';
finalSentance = finalSentance + revWord;
revWord = string.Empty;
}
}

if (revWord != string.Empty)
finalSentance = finalSentance + revWord;

return finalSentance;
}