Replacing a Substring with a New Substring

You can use the string.Replace method to find and replace a substring of a longer string with a new substring.  Replace is an instance method that acts upon a specified string and returns a new string.
In the example below, we replace every occurrence of “race” with “class”, returning the new string.
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            string quote =
@"There's a race of men that don't fit in,
A race that can't sit still;";
 
            string newQuote = quote.Replace("race", "class");
 
            Console.WriteLine(string.Format("ORIGINAL:\n{0}", quote));
            Console.WriteLine(string.Format("NEW:\n{0}", newQuote));
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You can use Replace to remove instances of a particular substring (replacing them with an empty string).
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string quote = "Four awesome score and seven awesome years ago";
 
string newQuote = quote.Replace("awesome ", "");
 
Console.WriteLine(string.Format("ORIGINAL:\n{0}", quote));
Console.WriteLine(string.Format("NEW:\n{0}", newQuote));


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