StringWriter vs. StringReader in C#?

StringReader and StringWriter are derived from TextReader and TextWriter

StringWriter is used for writing to a string buffer. It implements a TextWriter for writing information to a string.

For StringWriter -

Example

StringWriter sWriter = new StringWriter();
while(true) {
   myChar = strReader.Read();
   if(myChar == -1) break;

   convertedChar = Convert.ToChar(myChar);
   if(convertedChar == '.') {
      strWriter.Write(".");

      sReader.Read();
      sReader.Read();
   }else {
      sWriter.Write(convertedChar);
   }
}
}

StringReader to read string -

Example

StringBuilder sbuilder = new StringBuilder();

// append
sbuilder.AppendLine("Line one characters");
sbuilder.AppendLine("Line two characters");
sbuilder.AppendLine("Line three characters");

// read string
using (StringReader sReader = new StringReader(sbuilder.ToString())) {
   string readString = await sReader.ReadToEndAsync();
   Console.WriteLine(readString);
}

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